Reconfigurable modular box-type substation

Abstract

A reconfigurable modular box-type substation disclosed by the present invention comprises an outer shell, a loading assembly and a transformer assembly, the front end of the outer shell is provided with a rotationally connected box door, the rear side wall in the outer shell is provided with a connecting plate, the connecting plate is provided with a plurality of connecting ports, and the upper and lower side walls of the connecting ports are provided with pin grooves. The carrying assembly comprises a carrying plate and a driving assembly, connectors are symmetrically arranged at the front end of the carrying plate and inserted into the connecting openings in a matched mode, first sliding grooves are formed in the connectors, inserted pins in sliding connection are arranged in the first sliding grooves, and the driving assembly is arranged in the carrying plate. The driving assembly controls the bolt to retract into the first sliding groove or stretch out of the first sliding groove to be inserted into the pin groove to be matched. Compared with the prior art, the space utilization rate can be increased, meanwhile, reconstruction, disassembly and assembly are facilitated, and the assembly and maintenance efficiency of workers is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a reconfigurable modular box-type substation. Background Art

[0002] A box-type substation, also known as a prefabricated substation or prefabricated substation, is a factory-prefabricated indoor or outdoor compact power distribution device that integrates high-voltage switchgear, distribution transformers, and low-voltage distribution equipment according to a specific wiring scheme. It organically combines the functions of transformer step-down and low-voltage power distribution within a fully enclosed, movable steel structure box that is moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, and heat-insulated. It is particularly suitable for urban power grid construction and renovation, and is a new type of substation that has emerged after the civil substation.

[0003] Traditional box-type substations primarily consist of an outer shell and a transformer assembly installed within it. The transformer assembly is assembled from a variety of modular components, and the size and number of transformer assemblies vary depending on the model. Therefore, when installing the transformer assembly, it is necessary to consider how to fully utilize the internal space of the outer shell. However, the internal structure of the outer shell of traditional box-type substations is fixed, making the transformer assembly difficult to install and adjust, increasing the difficulty and efficiency of installation for workers. Furthermore, traditional box-type substations lack early warning systems. If a transformer assembly within the outer shell shorts and catches fire, it will not be easily detected, which can easily lead to fire accidents and property damage.

[0004] In view of this, the applicant conducted in-depth research on the above issues, which led to the present case. Summary of the Invention

[0005] The main purpose of the present invention is to provide a reconfigurable modular box-type substation, which can improve space utilization, facilitate reconstruction and disassembly, and improve the assembly and maintenance efficiency of workers.

[0006] In order to achieve the above object, the solution of the present invention is:

[0007] A reconfigurable modular box-type substation includes an outer shell, a carrier assembly and a transformer assembly. The front end of the outer shell is provided with a rotatably connected box door, the rear side wall inside the outer shell is provided with a connecting plate, the connecting plate is provided with a plurality of connecting ports, and the upper and lower side walls of the connecting ports are provided with pin grooves. The carrier assembly includes a carrier plate and a drive assembly. The front end of the carrier plate is symmetrically provided with connecting heads, the connecting heads are inserted into the connecting ports for engagement, a first slide groove is provided in the connecting head, a slidingly connected pin is provided in the first slide groove, the drive assembly is provided in the carrier plate, and the drive assembly controls the pin to retract into the first slide groove or extend out of the first slide groove and insert into the pin groove for engagement.

[0008] Furthermore, the driving assembly includes a push rod, a conical block, a first spring and a second spring, a second slide groove is provided in the connecting head, the second slide groove is connected to the first slide groove, a third slide groove is provided on both sides of the inner side of the loading plate, and a rear end of the third slide groove is provided with a top groove, the push rod slides in the third slide groove, the front end of the push rod is connected to the conical block, the conical block slides in the second slide groove, and the rear end of the push rod is provided with a top plate, the first spring is provided in the top groove, one end of the first spring is against the front wall of the top groove and the other end is against the top plate, the second spring is sleeved on the latch, one end of the second spring is against the side wall of the first slide groove and the other end is against the bottom of the latch, and the bottom of the latch is against the side wall of the conical block.

[0009] Furthermore, the lower end of the latch is provided with an abutting boss, the upper end of the abutting boss abuts against the second spring, and the lower end of the abutting boss is provided with an arc groove that cooperates with the conical block.

[0010] Furthermore, the loading plate is provided with a connecting boss at the rear end of the connecting head, and the connecting boss is provided with a locking cover with a threaded connection.

[0011] Furthermore, the locking cover has a cylindrical shape.

[0012] Furthermore, the connector and the loading plate are connected by screw locking, and the connector includes symmetrically arranged split bodies, and the two split bodies are connected by screw locking.

[0013] Furthermore, the loading plate is provided with a plurality of mounting holes.

[0014] Furthermore, a support frame is provided on the inner side wall of the box door, and the support frame is provided with a strip-shaped support groove corresponding to each row of connection ports.

[0015] Compared with the prior art, the beneficial effects are:

[0016] (1) During installation, the present invention can rationally arrange the internal installation space of the outer shell according to the number and size of the transformer components. By adjusting the installation position of the load-bearing components, the internal space of the outer shell can be fully utilized. In addition, there is a certain gap between the load-bearing plates to facilitate internal air circulation, which can improve the heat dissipation effect inside the outer shell.

[0017] (2) The loading plates are plugged into each other through connectors and ports, which have a simple structure and are more convenient and quick to assemble and disassemble, thus effectively improving the assembly and maintenance efficiency of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the external structure of the present invention.

[0019] Figure 2 It is a three-dimensional diagram of the external structure of the loading assembly.

[0020] Figure 3 It is a three-dimensional diagram of the cross-sectional structure of the loading assembly.

[0021] Figure 4 It is a side view of the cross-sectional structure of the loading assembly.

[0022] Figure 5 It is another perspective view of the external structure of the present invention.

[0023] Figure 6 Top view of the internal structure of the warning cavity.

[0024] Figure 7 This is a three-dimensional diagram of the internal structure of the early warning cavity.

[0025] In the figure: outer shell 1, door 11, air inlet 12, loading assembly 2, loading plate 21, connecting boss 211, locking cover 212, connecting head 22, first slide groove 23, second slide groove 24, third slide groove 25, top groove 26, transformer assembly 3, connecting plate 4, connecting port 41, pin groove 42, latch 5, top boss 51, arc groove 52, ejector rod 61, top plate 611, conical block 62, first spring 64, second spring 65, support frame 7, support groove 71, warning chamber 8, first flow channel 81, second flow channel 82, third flow channel 83, air inlet 84, exhaust fan 86, sensor 87, warning light 88, rotating shaft 91, pull rope 911, striking block 912, driving fan blade 913, warning bell 92, fixing plate 93, rotating plate 94, alloy memory spring 95, fourth flow channel 96. DETAILED DESCRIPTION

[0026] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0027] like Figure 1-7As shown, a reconfigurable modular box-type substation includes an outer shell 1, a load carrier assembly 2, and a transformer assembly 3. The front end of the outer shell 1 is provided with a rotatably connected door 11, which is connected to the outer shell 1 via a hinge. A screw-locked connection plate 4 is provided on the rear sidewall of the inner shell 1. The connection plate 4 is provided with a plurality of connection ports 41 arranged in a matrix. The specific number of connection ports 41 can be determined based on the actual assembly production. Pin slots 42 are provided on the upper and lower sidewalls of the connection ports 41. The load carrier assembly 2 includes a load carrier 21 and a drive assembly. The load carrier 21 is used to carry and mount the transformer assembly 3. The upper surface of the load carrier 21 is provided with a plurality of mounting holes. Connectors 22 are symmetrically provided at the front end of the load carrier 21. The connectors 22 can be inserted into the connection ports 41. The spacing between the connectors 22 is an integer multiple of the spacing between at least two connection ports 41. In this embodiment, the spacing between two connectors 22 is the spacing between three connection ports 41. A first slot 23 is provided within the connector 22, and a latch 5 is slidably connected thereto. A drive assembly is located within the carrier plate 21, controlling the latch 5 to retract into the first slot 23 or extend out of the slot 23 to engage with the latch 42. When the latch 5 is inserted into the latch 42, the carrier plate 21 is secured to the connecting plate 4. This allows workers to optimally allocate the mounting positions of the various carrier plates 21 as needed, fully utilizing the internal space of the outer housing 1 and facilitating installation of the transformer assembly 3.

[0028] In this embodiment, the driving assembly includes a push rod 61, a conical block 62, a first spring 64 and a second spring 65. A second slide groove 24 is provided in the middle of the connecting head 22, and the second slide groove 24 is connected to the first slide groove 23. A third slide groove 25 is provided on both sides of the interior of the loading plate 21. The rear end of the third slide groove 25 is provided with a top groove 26. The push rod 61 slides in the third slide groove 25. The front end of the push rod 61 is connected to the conical block 62. The conical block 62 slides in the second slide groove 24. The rear end of the rod 61 is provided with a top plate 611. A first spring 64 is disposed within the abutting groove 26. One end of the first spring 64 abuts against the front wall of the abutting groove 26, and the other end abuts against the top plate 611. A second spring 65 is sleeved onto the latch 5. The upper end of the second spring 65 abuts against the side wall of the first slide groove 23. The lower end of the latch 5 is provided with an abutting boss 51. The upper end of the abutting boss 51 abuts against the lower end of the second spring 65. The lower end of the abutting boss 51 is provided with an arcuate groove 52 that mates with the tapered block 62. Furthermore, the loading plate 21 is provided with a connecting boss 211 at the rear end of the connector 22, corresponding to the loading plate 21. A locking cap 212 is threadedly attached to the connecting boss 211.

[0029] In this embodiment, a support frame 7 is provided on the inner side wall of the door 11. The support frame 7 is provided with a strip-shaped support groove 71 corresponding to each row of connection ports 41. With this structure, when the door 11 is closed, the connecting boss 211 and locking cover 212 of the loading assembly 2 can extend into the support groove 71, supporting the rear end of the loading assembly 2 via the support groove 71. This not only improves the installation strength of the loading assembly 2, but also ensures that the front and rear forces of the loading plate 21 are more evenly distributed, making it less susceptible to damage and further increasing the service life of the present invention. Furthermore, the locking cover 212 is cylindrical in shape, which facilitates its smooth insertion into the strip groove when the door 11 is closed.

[0030] Specifically, in order to facilitate the disassembly and assembly of the connector 22 and the latch 5 , the connector 22 and the loading plate 21 are fixedly connected by screws. The connector 22 includes symmetrically arranged split bodies, and the two split bodies are fixedly connected by screws.

[0031] The operating principle of the present invention is as follows: Before installation, loosen the locking cover 212. The first spring 64 pushes the top plate 611 outward, thereby moving the push rod 61 and the tapered block 62 rearward. At this point, the second spring 65 pushes the latch 5 downward, causing it to retract into the connector 22. The connector 22 is then inserted into the corresponding connection port 41 according to the required position. Then, tighten the locking cover 212. The locking cover 212 pushes the top plate 611 forward, thereby moving the push rod 61 and the tapered block 62 forward. The tapered block 62 engages with the arcuate groove 52 of the latch 5, pushing the latch 5 outward, allowing it to be inserted into the pin slot 42 and secured. Once the carrier assembly 2 is installed, install the transformer assembly 3 on the carrier assembly 2 and close the door 11. To disassemble, simply loosen the locking cover 212 to separate the latch 5 from the pin slot 42, and then remove the carrier assembly 2.

[0032] Compared to existing technologies, the present invention allows for optimal arrangement of the internal installation space of the outer housing 1 during installation, based on the number and size of transformer assemblies 3. By adjusting the installation position of the carrier assembly 2, the internal space of the outer housing 1 can be fully utilized. Furthermore, a certain gap between the carrier plates 21 facilitates internal air circulation, enhancing heat dissipation within the outer housing 1. The carrier plates 21 are inserted and mated via connectors 22 and ports 41, resulting in a simple structure and more convenient and quick assembly and disassembly, effectively improving assembly and maintenance efficiency.

[0033] More specifically, in this embodiment, in order to further improve the warning effect of the present invention, the side walls of the main cabinet 1 are provided with a plurality of air inlets 12. Specifically, there are four air inlets 12, which are respectively arranged at the upper and lower ends of the side walls on both sides of the main cabinet 1, so that the external air can better enter the interior of the main cabinet 1, thereby improving the heat dissipation effect inside the main cabinet 1. In addition, a dustproof net is provided in the air inlet 12, which plays a role in filtering dust, avoiding the phenomenon of short circuit of transformer components caused by dust accumulation inside the main cabinet 1, and further improving the service life of the present invention. An early warning chamber 8 is provided at the top of the main cabinet 1, and the early warning chamber 8 is provided with a first flow channel 81, a second flow channel 82 and a third flow channel 83 which are connected in sequence. The first flow channel 81, the second flow channel 82 and the third flow channel 83 are connected in sequence in an "S" shape. An air inlet 84 is provided on the bottom wall at the front end of the first flow channel 81, and an air outlet is provided on the top wall at the rear end of the third flow channel 83. An exhaust fan 86 is installed at the air outlet of the main cabinet 1. An early warning mechanism is provided in the first flow channel 81, and a sensor 87 is provided at the air inlet 84. The sensor 87 can specifically be a smoke sensor. An early warning light 88 electrically connected to the sensor 87 is provided at the upper end of the main cabinet 1. After adopting the structure, the exhaust fan 86 is used to extract air, and the air inside the main cabinet 1 enters the first flow channel 81 through the air inlet 84, and then is discharged from the air outlet of the third flow channel 83 along the exhaust fan 86. In this way, once the gas enters the air inlet 84, the sensor 87 can immediately sense whether there is smoke in the air, making the early warning function more sensitive.

[0034] In this embodiment, the warning mechanism includes a rotating shaft 91, a warning bell 92, and a drive assembly. The rotating shaft 91 is rotatably connected to the first flow channel 81. The rotating shaft 91 has an extended end extending outside the main cabinet 1 and is provided with a pull rope 911. A striking block 912 is fixed to the pull rope 911. The warning bell 92 is mounted on the outside of the main cabinet 1 and is located on the side of the extended end of the rotating shaft 91. The drive assembly is located in the first flow channel 81 and drives the rotating shaft 91 to rotate when the temperature inside the main cabinet 1 rises. Specifically, the drive assembly includes a fixed plate 93, a rotating plate 94, and an alloy memory spring 95. The fixed plates 93 are symmetrically arranged, and the upper and lower ends of the fixed plates 93 are fixedly and sealedly connected to the upper and lower side walls of the first flow channel 81. The extension direction of the fixed plates 93 is parallel to the extension direction of the first flow channel 81. A fourth flow channel 96 is formed between the two fixed plates 93. A support seat is provided in the fourth flow channel 96, and the rotating shaft 91 is rotatably connected to the support seat. A rotating plate 94 is mounted on one end of the fixed plate 93 near the air inlet 84. The end of the rotating plate 94 is rotatably connected to the fixed plate 93. Rubber pads are installed on the upper and lower sidewalls of the rotating plate 94 to prevent air leakage from the upper and lower ends of the rotating plate 94. One end of an alloy memory spring 95 is fixedly connected to the sidewall of the first flow channel 81, and the other end of the alloy memory spring 95 is fixedly connected to the sidewall of the rotating plate 94. A driving blade 913 is installed on the end of the rotating shaft 91 near the air inlet 84.

[0035] After adopting the above structure, during daily use, the alloy memory spring 95 presses against the rotating plates 94 on both sides, so that the front ends of the two rotating plates 94 press against each other, sealing the fourth flow channel 96. At this time, the gas flows from the outside of the fixed plate 93 in the first flow channel 81 to the second flow channel 82. When a short circuit fire occurs inside the solid cabinet, the temperature inside the solid cabinet rises sharply, and part of the high-temperature gas flows from the air inlet 84 into the first flow channel 81, causing the alloy memory spring 95 to shrink after being heated. During the shrinkage process, the front ends of the two rotating plates 94 separate from each other, so that the front end of the fourth flow channel 96 is connected to the first flow channel 81. The fast high-temperature gas blows the drive blades 913, thereby driving the rotating shaft 91 to rotate. During the rotation process, the rotating shaft 91 drives the striking block 912 to strike the warning bell 92, emitting a warning sound effect.

[0036] Compared with the prior art, the beneficial effect is that the present invention can fully introduce the air inside the main cabinet 1 into the S-shaped flow channel by providing the air inlet 12 and the S-shaped flow channel, and slightly reduce the flow speed of the gas in the warning chamber 8. When a fire breaks out inside the main cabinet 1 and smoke is emitted, the sensor 87 can fully sense the smoke in the gas and issue an alarm in time. In addition, in the event of a fire, due to the increase in temperature inside the main cabinet 1, the drive assembly can drive the rotating shaft 91 to rotate, driving the striking block 912 to continuously strike the warning bell 92, issuing a warning sound. Compared with traditional circuit buzzer alarms that are prone to short circuits at high temperatures and cannot issue warnings, the present invention replaces them with a simple mechanical structure, which can effectively reduce the failure of the alarm, so that the solid cabinet of the present invention has better safety performance.

[0037] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A reconfigurable modular box-type substation, characterized in that: It includes an outer shell, a loading assembly and a transformer assembly. The front end of the outer shell is provided with a rotatably connected box door, the rear side wall inside the outer shell is provided with a connecting plate, the connecting plate is provided with several connecting ports, and the upper and lower side walls of the connecting ports are provided with pin grooves. The loading assembly includes a loading plate and a driving assembly. The front end of the loading plate is symmetrically provided with connecting heads, the connecting heads are inserted into the connecting ports for engagement, a first sliding groove is provided in the connecting head, a slidingly connected pin is provided in the first sliding groove, the driving assembly is provided in the loading plate, and the driving assembly controls the pin to retract into the first sliding groove or extend out of the first sliding groove and insert into the pin groove for engagement.

2. The reconfigurable modular box-type substation according to claim 1, characterized in that: The driving assembly includes a push rod, a conical block, a first spring and a second spring, a second slide groove is provided in the connecting head, the second slide groove is connected to the first slide groove, a third slide groove is provided on both sides of the inner side of the loading plate, and the rear end of the third slide groove is provided with a top groove, the push rod slides in the third slide groove, the front end of the push rod is connected to the conical block, the conical block slides in the second slide groove, and the rear end of the push rod is provided with a top plate, the first spring is provided in the top groove, one end of the first spring is against the front wall of the top groove and the other end is against the top plate, the second spring is sleeved on the latch, one end of the second spring is against the side wall of the first slide groove and the other end is against the bottom of the latch, and the bottom of the latch is against the side wall of the conical block.

3. The reconfigurable modular box-type substation according to claim 2, characterized in that: The lower end of the latch is provided with a butting boss, the upper end of the butting boss is butted against the second spring, and the lower end of the butting boss is provided with an arc groove matched with the conical block.

4. The reconfigurable modular box-type substation according to claim 2, characterized in that: The loading plate is provided with a connecting boss at the rear end of the connecting head, and the connecting boss is provided with a locking cover connected with a thread.

5. The reconfigurable modular box-type substation according to claim 4, characterized in that: The locking cover has a cylindrical shape.

6. The reconfigurable modular box-type substation according to claim 1, characterized in that: The connector and the loading plate are connected by screw locking. The connector includes symmetrically arranged split parts, and the two split parts are connected by screw locking.

7. The reconfigurable modular box-type substation according to claim 1, characterized in that: The loading plate is provided with a plurality of mounting holes.

8. The reconfigurable modular box-type substation according to claim 1, characterized in that: A support frame is provided on the inner side wall of the box door, and the support frame is provided with a strip-shaped support groove corresponding to each row of connection ports.

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