A power distribution cabinet

Abstract

The present invention discloses a power distribution cabinet, belonging to the field of power distribution cabinets. A power distribution cabinet includes a cabinet body, and an installation plate for partitioning the inner cavity of the cabinet body is fixedly installed on the cabinet body; wherein, the installation plate is used for installing power distribution cabinet components; a pre-wired component is fixedly installed on the installation plate, and the pre-wired component is used for presetting wires on the installation plate; wherein the pre-wired component includes terminal blocks, and a conductive rod for connecting adjacent terminals in series is fixedly connected between multiple terminal blocks; the present invention greatly simplifies the internal wiring process by introducing the pre-wired component. The installation plate arranged in the cabinet body is used for installing various power distribution cabinet components. Multiple terminal blocks are preset on the installation plate, and the terminal blocks are distributed longitudinally along the installation plate. Each terminal block is connected by a conductive rod to form a series of series-connected terminal structures, eliminating the need to use complex wire troughs for wiring and enabling easy point-to-point wiring of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and particularly to a distribution cabinet. Background Art

[0002] A distribution cabinet is an important device for power distribution, control, and protection in a power system. It is mainly used to convert high-voltage electrical energy into electrical energy suitable for low-voltage use and distribute the power to various electrical equipment or circuits through different circuit breakers and switches. Distribution cabinets are widely used in industrial, commercial, and residential buildings to ensure the safe, reliable, and efficient operation of the power system, such as earthquake-proof distribution cabinets.

[0003] A patent with publication number CN110474238A in the prior art discloses an earthquake-proof distribution cabinet, including a cabinet box, a first spring, and an insulating plate. A cabinet base is provided at the bottom of the cabinet box, and clamping grooves are formed on both sides of the bottom of the cabinet base. Among them, a clamping plate is connected inside the clamping groove, a sleeve is provided on one side surface of the clamping plate, a threaded rod penetrates through the inside of the sleeve, a nut is connected above the sleeve near the threaded rod, a buffer pad is provided below the sleeve near the threaded rod, the first spring is sleeved outside the threaded rod below the buffer pad, and the threaded rod and the first spring are connected inside the base through a first cylindrical groove. This earthquake-proof distribution cabinet is provided with a sleeve. When the position where the distribution cabinet is located is shaken, the first spring below the buffer pad and the second spring below the first groove are squeezed and deformed, so that the first spring cushions the four corners of the cabinet base through the sleeve above the buffer pad, thus facilitating the shock absorption of the distribution cabinet.

[0004] However, there are some problems in the prior art: The traditional device uses wire grooves as wiring tools. When wiring the devices inside the distribution cabinet, the wires need to be pulled into the horizontal wire groove, then wound through the wire grooves on both sides and then led out from the horizontal wire groove at the position of the docking device, and finally reach the docking device. The whole process requires cumbersome operations, greatly reducing the wiring speed. If the point-to-point wiring method is directly adopted, a large amount of wire will block the devices inside the electrical cabinet, and the wires will be chaotic, which is not conducive to maintenance. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that directly adopting the point-to-point wiring method in the prior art will cause a large amount of wires to block the devices inside the electrical cabinet, and the wires are chaotic and not conducive to maintenance, and to propose a distribution cabinet.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A power distribution cabinet includes a cabinet. An installation plate that divides the inner cavity of the cabinet is fixedly installed in the cabinet, and the installation plate is used for installing power distribution cabinet components. A pre-wiring assembly is fixedly installed on the installation plate, and the pre-wiring assembly is used for presetting wires on the installation plate. Among them, the pre-wiring assembly includes terminal blocks, and a plurality of the terminal blocks are distributed at different longitudinal positions of the installation plate, and a conductive rod for connecting adjacent terminals in series is fixedly connected between the plurality of terminal blocks.

[0008] To achieve the docking operation of the preset terminal blocks, preferably, the terminal block includes a double-headed terminal block. The double-headed terminal block is inserted and installed at the bottom of the installation plate. Slots for connecting cables are provided on both sides of the double-headed terminal block. A single-headed terminal block is inserted and installed at the upper part of the installation plate. A slot for connecting a cable is provided on one side of the single-headed terminal block. The double-headed terminal block and the single-headed terminal block are connected by a conductive rod.

[0009] To facilitate wiring at the rear of the cabinet and wiring with the external aviation wire sub-cable, further, a back plate is fixedly installed at the rear of the cabinet. An aviation wire socket that penetrates the inner cavity of the cabinet and the outside world is fixedly installed at the bottom of the back plate. The slot on one side of the double-headed terminal block close to the back plate is used for connecting the sub-cable of the aviation wire.

[0010] To achieve independent on-off control of the conductive rod between the terminal blocks, further, a switch terminal block for controlling the on-off of the conductive rod is also fixedly installed at the rear of the installation plate. The switch terminal block is located in the middle of the conductive rod. The switch terminal block includes a substrate. The substrate is fixed at the rear of the installation plate. A first screw rod is rotatably installed on the substrate. A touch plate is slidably installed inside the substrate. The touch plate is driven by the first screw rod to contact the conductive rod to form a circuit or separate from the conductive rod to form an open circuit. One end of the first screw rod away from the touch plate passes through the substrate and extends to the outside and is fixedly connected with a turning knob.

[0011] To reduce the use of conductive rods, use a plurality of double-headed terminal blocks and perform wiring operations with wires at the rear of the cabinet. While reducing wire winding, fast wiring is carried out without affecting the appearance. Further, there are three double-headed terminal blocks. The three double-headed terminal blocks are longitudinally and equidistantly inserted and installed in the installation plate, and are used for installing a horizontal wire groove on the back of the installation plate, so that wiring operations can be carried out without passing through the vertical wire grooves on both sides.

[0012] In order to achieve rapid connection between the terminal block and the device, further, slots for wiring are respectively formed on both sides of the double-headed terminal block. Pressure plates are slidably installed inside both sides of the double-headed terminal block. A second screw rod is rotatably installed inside the double-headed terminal block. The pressure plates are screwed onto the outer part of the second screw rod. Driven by the second screw rod, the pressure plates move into the slots to press the wiring heads inserted into the slots. A first wire for connecting the devices inside the power distribution cabinet is fixedly connected to the upper part of the wiring heads.

[0013] In order to achieve the series connection between the slots of the terminal block and the blowing of dust at the slots, furthermore, the bottoms of two adjacent wiring heads are connected by a second wire to achieve the series connection between the slots. An empty slot is formed between the double-headed terminal blocks. An air flow channel is formed inside the mounting plate. The empty slot communicates with the air flow channel. A butt wire is fixedly connected inside the double-headed terminal block for connecting the slots of the double-headed terminal block in series. The butt wire passes through the empty slot. Cooling air channels communicating with the empty slot are formed inside both sides of the double-headed terminal block. The output end of the cooling air channel corresponds to the upper part of the pressure plate. A flow guide plate is fixedly connected to the air inlet end of the cooling air channel of the double-headed terminal block.

[0014] In order to achieve rapid air flow and position adaptive adjustment of the device installation guide rail, further, a door panel is rotatably installed at the front of the cabinet. A cover plate is fixedly installed at the upper part of the cabinet. An air outlet gap is formed between the cover plate and the cabinet. A plurality of fans are fixedly installed at the upper part of the cabinet for exhausting the heat inside the cabinet. The inner cavity of the cabinet communicates with the air outlet gap. The mounting plate includes a plate body. A bracket is slidably installed at the front part of the plate body. A guide rail is fixedly installed at the front part of the bracket. A lead screw is rotatably installed in the middle of the plate body. The bracket is screwed onto the outer part of the lead screw. A knob is fixedly connected to the lower part of the lead screw. The knob is rotatably installed on the plate body. The bracket makes a lifting adjustment action under the control of the knob.

[0015] In order to achieve multiple filtration of the cooling gas, further, an air inlet is provided at the bottom of the cabinet. An air filtration assembly is fittedly installed at the air inlet at the bottom of the cabinet. The air filtration assembly includes a bottom plate. The bottom plate is fixed at the air inlet of the cabinet. The bottom plate is hollow. A first filter element is arrayed and filled in the middle of the bottom plate. A partition plate is fixedly connected to the upper part of the bottom plate. A first air port is formed on one side of the partition plate. A top plate is fixedly connected to the upper part of the partition plate. A second air port is formed on the side of the top plate far from the first air port. A plurality of second filter elements are equidistantly inserted and installed on the top plate.

[0016] To achieve multiple filtrations of the cooling gas, further, the first filter element includes a gas guide pipe fixed within the bottom plate. Inside the gas guide pipe, there are obliquely arranged first and second baffles fixedly connected. The second baffle is located above the first baffle. The first and second baffles cooperate with the gas guide pipe to form an inverted triangular collection groove for blocking large particle debris. At the top of the gas guide pipe, there is a third baffle fixedly connected. An air outlet is formed between the gas guide pipe and the third baffle, and the air outlet communicates with the outside through the gas guide pipe. The second filter element includes a dust collection plate with a filter screen fixedly installed inside. On one side of the dust collection plate, there is a collection groove, and the dust collection plate is installed on the upper part of the top plate through bolt insertion.

[0017] Compared with the prior art, the present invention provides a power distribution cabinet with the following beneficial effects:

[0018] 1. For this power distribution cabinet, the internal wiring process is greatly simplified by introducing a pre-wired component. The mounting plate provided inside the cabinet is used to install various power distribution cabinet components. Multiple terminal blocks are preset on the mounting plate, and the terminal blocks are distributed longitudinally along the mounting plate. Each terminal block is connected by a conductive rod to form a series of series-connected terminal structures. This design allows users to connect the devices at the bottom to the terminal block at the bottom through wires, while the devices at the upper part can be connected to the terminal block in the middle. Since the position of each terminal block matches the position of its corresponding device, users no longer need to use complex wire troughs for wiring and can easily complete the point-to-point wiring of the equipment.

[0019] 2. For this power distribution cabinet, by setting a switch terminal block at the rear of the mounting plate, the controllability of the on-off of the conductive rod between the terminal blocks is achieved, thereby enhancing the wiring flexibility and the convenience of system management. Specifically, the switch terminal block is used to control the electrical connection between the conductive rod and the terminal block, allowing users to control the on-off of the circuit as needed.

[0020] 3. In another embodiment of this power distribution cabinet, the use of single-head terminal blocks is cancelled, and only three double-head terminal blocks are used for wiring operations and are connected by wires at the rear of the cabinet. The three double-head terminal blocks are arranged equidistantly longitudinally along the mounting plate and are inserted and installed on the inner side of the mounting plate. Each double-head terminal block has bilateral slots and can connect two groups of front and rear cables simultaneously. To reduce the wire routing path, a horizontal wire trough is also installed on the back of the mounting plate, and the rear cables are connected through this horizontal wire trough without passing through the vertical wire troughs on both sides, thus simplifying the wiring path.

[0021] 4. An empty slot is provided between the double - headed terminal blocks, and the empty slot communicates with the air - guiding channel inside the mounting plate. Cooling gas enters the empty slot from the air - guiding channel, and through the cooling air channels on both sides of the double - headed terminal block, the gas is guided to the upper part of the slot and blows at the connection head to prevent dust accumulation. The flow - guiding plate is installed at the air - inlet end of the cooling air channel to guide the air to enter the system evenly, ensuring the blowing effect. And in cooperation with the cooling gas, it first enters the air - filtering component through the air - inlet at the bottom of the cabinet, passes through the first baffle and the second baffle in the air - guiding pipe to block larger particulate matters, and deposits them in the inverted - triangle collecting groove. When the temperature of the cabinet is too high, the fan starts, forcing the cooling gas into the cabinet interior to help reduce the temperature. After passing through the air - outlet of the air - guiding pipe, the filtered gas enters the second filtering component for efficient blowing.

[0022] Parts not involved in this device are the same as or can be implemented using existing technologies. Compared with the traditional wire - groove wiring method, this power distribution cabinet adopts a centralized wiring management, avoiding the problem of a large number of wires crossing and piling up inside the device. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a power distribution cabinet proposed by the present invention;

[0024] Figure 2 It is a schematic structural diagram of the cross - section of the cover plate of a power distribution cabinet proposed by the present invention;

[0025] Figure 3 It is a schematic structural diagram of the cross - section of the cabinet of a power distribution cabinet proposed by the present invention;

[0026] Figure 4 It is a schematic structural diagram of a single - headed terminal block of a power distribution cabinet proposed by the present invention;

[0027] Figure 5 It is a power distribution cabinet proposed by the present invention Figure 4 Schematic structural diagram of part A;

[0028] Figure 6 It is a schematic structural diagram of the first screw of a power distribution cabinet proposed by the present invention;

[0029] Figure 7 It is a schematic structural diagram of the lead screw of a power distribution cabinet proposed by the present invention;

[0030] Figure 8 It is a schematic structural diagram of the double - headed terminal block of a power distribution cabinet proposed by the present invention;

[0031] Figure 9 It is a schematic structural diagram of the connection head of a power distribution cabinet proposed by the present invention;

[0032] Figure 10Schematic diagram of the double - headed terminal block structure of another embodiment of a power distribution cabinet proposed by the present invention;

[0033] Figure 11 Schematic diagram of the second wire structure of a power distribution cabinet proposed by the present invention;

[0034] Figure 12 Schematic diagram of the air - filtering component structure of a power distribution cabinet proposed by the present invention;

[0035] Figure 13 Explosion structure diagram of the air - filtering component of a power distribution cabinet proposed by the present invention;

[0036] Figure 14 Schematic diagram of the cross - sectional structure of the first filter element of a power distribution cabinet proposed by the present invention;

[0037] Figure 15 Schematic diagram of the plate body structure of another embodiment of a power distribution cabinet proposed by the present invention;

[0038] Figure 16 Schematic diagram of the butt - joint wire structure of a power distribution cabinet proposed by the present invention;

[0039] Figure 17 For a power distribution cabinet proposed by the present invention Figure 16 Schematic diagram of part B structure in it.

[0040] In the figure: 1, cabinet; 2, mounting plate; 201, plate body; 202, bracket; 203, guide rail; 204, lead screw; 205, knob; 206, air - guiding channel; 3, pre - wired assembly; 301, double - headed terminal block; 302, single - headed terminal block; 303, switch terminal block; 3031, base plate; 3032, turning knob; 3033, first screw; 3034, touch plate; 304, conductive rod; 305, second screw; 306, pressing plate; 307, terminal; 308, first wire; 309, second wire; 310, empty slot; 311, flow - guiding plate; 312, cooling air duct; 313, butt - joint wire; 4, air - filtering component; 401, bottom plate; 402, first filter element; 4021, air duct; 4022, first baffle; 4023, second baffle; 4024, third baffle; 4025, air outlet; 403, partition; 404, first air port; 405, top plate; 406, second air port; 407, second filter element; 7071, dust - collecting plate; 4072, filter screen; 4073, bolt; 5, fan; 6, cover plate; 7, air - outlet gap; 8, door panel; 9, back panel; 10, aviation - line socket. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0043] Embodiment:

[0044] Refer to Figures 1 - 17 , a power distribution cabinet, including a cabinet 1, the cabinet 1 is fixedly installed with a mounting plate 2 that divides the inner cavity of the cabinet 1, and the mounting plate 2 is used for installing power distribution cabinet components; a pre-wired component 3 fixedly installed on the mounting plate 2, and the pre-wired component 3 is used for presetting wires on the mounting plate 2; wherein, the pre-wired component 3 includes terminal blocks, and multiple terminal blocks are distributed at different longitudinal positions of the mounting plate 2, and a conductive rod 304 for connecting adjacent terminals in series is fixedly connected between the multiple terminal blocks.

[0045] The above power distribution cabinet greatly simplifies the internal wiring process by introducing the pre-wired component 3. The mounting plate 2 provided in the cabinet 1 is used for installing various power distribution cabinet components, and multiple terminal blocks are preset on the mounting plate 2. The terminal blocks are distributed longitudinally along the mounting plate 2, and each terminal block is connected by a conductive rod 304 to form a series of series-connected terminal structures. This design allows users to connect the bottom devices to the bottom terminal blocks through wires, while the upper devices can be connected to the middle terminal blocks. Since the position of each terminal block matches the position of its corresponding device, users no longer need to use complex wire grooves for wiring and can easily complete the point-to-point wiring of the equipment.

[0046] The presence of the conductive rod 304 further simplifies the circuit connection. By standardizing the specifications of the conductive rod 304, not only the error in the connection is reduced, but also the current transfer between adjacent terminals is made more efficient, thereby improving the safety and stability of the wiring. The design of the pre-wired component 3 allows users to avoid measuring and wiring one by one, greatly reducing the cumbersome steps of manual wiring and realizing a "plug and play" connection method.

[0047] Compared with the traditional wire duct wiring method, it not only solves the problems of complex traditional wiring and chaotic wires, but also significantly improves the wiring speed and convenience, greatly optimizes the maintenance management efficiency, and at the same time improves the safety and availability of the equipment; the preset terminal block is reasonably arranged and corresponds to the layout of the devices, which is convenient for technicians to quickly find the corresponding wiring points during maintenance and saves the time for troubleshooting. At the same time, the neat wiring also reduces the maintenance difficulty.

[0048] To achieve the docking operation of the preset terminal block, preferably, the terminal block includes a double-headed terminal block 301. The double-headed terminal block 301 is inserted and installed at the bottom of the mounting plate 2. Slots for connecting cables are provided on both sides of the double-headed terminal block 301. A single-headed terminal block 302 is inserted and installed on the upper part of the mounting plate 2. A slot for connecting cables is provided on one side of the single-headed terminal block 302. The double-headed terminal block 301 and the single-headed terminal block 302 are connected by a conductive rod 304.

[0049] By optimizing the structural design of the terminal block, the docking operation is further simplified and the wiring efficiency is improved. Specifically, the terminal block is composed of a double-headed terminal block 301 and a single-headed terminal block 302, and is respectively installed at the bottom and upper part of the mounting plate 2. The double-headed terminal block 301 has slots on both sides, which can connect two groups of cables at the same time, thus supporting the parallel connection of multiple devices. The single-headed terminal block 302 has a slot only on one side for connecting the cables of the upper devices. The electrical connection between the double-headed terminal block 301 and the single-headed terminal block 302 is realized through the conductive rod 304.

[0050] During operation, the cables of the bottom devices are connected to the lower slots of the double-headed terminal block 301, while the cables of the upper devices are connected to the slots of the single-headed terminal block 302. Since the conductive rod 304 electrically connects the double-headed terminal block 301 and the single-headed terminal block 302, the entire circuit is seamlessly docked between the two terminal blocks. The conductive rod 304 not only transmits current but also maintains the electrical path between the upper and lower devices, ensuring that each device can operate as expected.

[0051] This design makes the wiring of the devices more efficient. The double-sided slots of the double-headed terminal block 301 enable the bottom devices to be simultaneously connected to multiple upper devices through the conductive rod 304, eliminating the need for wire winding or excessive use of cables, thus greatly simplifying the wiring work. The combination of the double-headed terminal block 301, the single-headed terminal block 302 and the conductive rod 304 makes the entire system connection more concise and orderly.

[0052] To facilitate wiring at the rear of the cabinet 1 and connect to the external aviation wire sub-cable, further, a backplane 9 is fixedly installed at the rear of the cabinet 1. An aviation wire socket 10 that penetrates the inner cavity of the cabinet 1 and the outside world is fixedly installed at the bottom of the backplane 9. The slot on the side of the double-headed terminal block 301 close to the backplane 9 is used to connect the sub-cable of the aviation wire.

[0053] In practical applications, external airline cables enter the cabinet 1 through the socket, and the sub-cables of the airline cables are connected to the rear slots of the double-headed terminal block 301 through the backplane 9. Due to the double-sided slot design of the double-headed terminal block 301, the sub-cables of the airline cables can be quickly plugged into the double-headed terminal block 301 at the backplane 9. At the same time, the cables of internal devices can be connected to the front slots of the double-headed terminal block 301. In this way, the sub-cables of the airline cables and the internal devices are electrically connected through the double-headed terminal block 301 to form a complete circuit.

[0054] The key to this design lies in the reasonable layout of the backplane 9 and the airline cable socket 10, enabling external cables to be conveniently accessed from the rear of the cabinet 1 without affecting the wiring work inside the cabinet 1. The double-sided slot design of the double-headed terminal block 301 ensures that external cables and internal devices can be independently connected, avoiding wiring chaos and space occupation problems caused by overly long cables.

[0055] To achieve independent on / off control of the conductive rods 304 between the terminal blocks, further, a switch terminal block 303 for controlling the on / off of the conductive rods 304 is fixedly installed at the rear of the mounting plate 2. The switch terminal block 303 is located in the middle of the conductive rods 304. The switch terminal block 303 includes a base plate 3031, which is fixed to the rear of the mounting plate 2. A first screw 3033 is rotatably installed on the base plate 3031, and a touch plate 3034 is slidably installed inside the base plate 3031. The touch plate 3034 is driven by the first screw 3033 to contact the conductive rod 304 to achieve a conducting path or separate from the conductive rod 304 to achieve an open circuit. One end of the first screw 3033 away from the touch plate 3034 passes through the base plate 3031 and extends to the outside to be fixedly connected to a knob 3032.

[0056] By providing the switch terminal block 303 at the rear of the mounting plate 2, the controllability of the on / off of the conductive rods 304 between the terminal blocks is achieved, thereby enhancing the wiring flexibility and the convenience of system management. Specifically, the switch terminal block 303 is used to control the electrical connection between the conductive rod 304 and the terminal block, allowing users to control the on / off of the circuit as needed.

[0057] One end of the first screw 3033 is manually operated through the knob 3032, and the other end drives the touch plate 3034 inside the base plate 3031 to move along the sliding track by rotation. When the user turns the knob 3032, the first screw 3033 rotates, pushing the touch plate 3034 forward to contact the conductive rod 304, completing the closing of the electrical conducting path; conversely, if the touch plate 3034 separates from the conductive rod 304, the electrical conducting path is disconnected, achieving circuit disconnection.

[0058] With this design, users can manually control the electrical connection between terminal blocks according to actual needs without frequently replacing wires or rewiring. This control method allows the circuit of the power distribution cabinet to flexibly control the current flow without changing the physical wiring, greatly facilitating the system debugging, switching, and maintenance work.

[0059] To reduce the use of conductive rods 304, multiple double-headed terminal blocks 301 are used. Wiring operations are carried out using wires at the rear of the cabinet 1. While reducing wire winding, fast wiring is achieved without affecting aesthetics. Moreover, three double-headed terminal blocks 301 are provided. The three double-headed terminal blocks 301 are longitudinally and equally spaced and inserted and installed in the mounting plate 2 for installing a horizontal wire groove on the back of the mounting plate 2, enabling wiring operations without passing through the vertical wire grooves on both sides.

[0060] In another embodiment, the use of single-headed terminal blocks 302 is cancelled, and only three double-headed terminal blocks 301 are used for wiring operations and are connected by wires at the rear of the cabinet 1. The three double-headed terminal blocks 301 are arranged longitudinally and equally spaced along the mounting plate 2 and are inserted and installed inside the mounting plate 2. Each double-headed terminal block 301 has double-sided slots and can connect two groups of front and rear cables simultaneously. To reduce the wire winding path of the cables, a horizontal wire groove is also installed on the back of the mounting plate 2, and the rear cables are connected through this horizontal wire groove without passing through the vertical wire grooves on both sides, thus simplifying the wiring path.

[0061] During specific operations, each device inside the cabinet 1 is connected to the front-side slots of the double-headed terminal block 301 through wires, and the rear cables are directly connected to the rear-side slots of the double-headed terminal block 301 through the wires at the back of the cabinet 1. Through the horizontal wire groove installed on the backplane 9, the rear cables can be organized more efficiently, avoiding complex wire winding operations while keeping the inside of the cabinet 1 clean and beautiful. This design cancels the use of vertical wire grooves and relies on the horizontal wire groove on the backplane 9 to achieve reasonable cable distribution, reducing the use of conductive rods 304 and ensuring fast wiring completion. Due to the double-sided connection structure of the double-headed terminal block 301, the cable layout is more flexible, and the connection between internal and external devices becomes simpler and more efficient.

[0062] To achieve fast connection between the terminal block and the device, further, slots for wiring are respectively provided on both sides of the double-headed terminal block 301. Pressure plates 306 are slidably installed inside both sides of the double-headed terminal block 301. A second screw rod 305 is rotatably installed inside the double-headed terminal block 301. The pressure plate 306 is screwed to the outside of the second screw rod 305. The pressure plate 306 is driven by the second screw rod 305 to move into the slot to press the wiring head 307 inserted into the slot. The upper part of the wiring head 307 is fixedly connected to a first wire 308 for connecting devices inside the power distribution cabinet.

[0063] A structure of a pressing plate 306 and a second screw 305 is added to the two-side slots of the double-headed terminal block 301 to achieve rapid wire pressing. Specifically, the two-side slots of the double-headed terminal block 301 are used to connect wires. A pressing plate 306 is slidably installed inside the slots, and the second screw 305 is threadedly connected to the pressing plate 306 to drive it to move within the slots. By rotating the second screw 305, the pressing plate 306 moves forward to firmly press the wire connection head 307 in the slots, thus achieving a reliable electrical connection.

[0064] In actual operation, after the user inserts the connection head 307 into the slot of the double-headed terminal block 301, rotates the second screw 305, the screw drives the pressing plate 306 to move forward, presses the connection head 307 within the slot, and ensures that the wire is in close contact with the terminal block. The upper part of the connection head 307 is connected to the device inside the power distribution cabinet through the first wire 308, thus achieving the electrical connection between the device and the terminal block.

[0065] Through the introduction of the pressing plate 306 and the screw structure, the connection between the wire and the terminal block becomes faster and more stable, avoiding the problems of loosening or poor contact in the traditional wiring method. At the same time, the precise adjustment mechanism of the screw also ensures that the pressing force for each wiring is uniform, improving the safety and stability of the overall system.

[0066] In order to achieve the series connection between the slots of the terminal block and the blowing of dust at the slots, further, the bottoms of two adjacent connection heads 307 are connected through the second wire 309 to achieve the series connection between the slots. An empty slot 310 is provided between the double-headed terminal blocks 301, and an air flow channel 206 is provided inside the mounting plate 2. The empty slot 310 communicates with the air flow channel 206. A butt wire 313 is fixedly connected inside the double-headed terminal block 301 for series connecting the slots of the double-headed terminal block 301. The butt wire 313 passes through the empty slot 310. Cooling air channels 312 are provided inside both sides of the double-headed terminal block 301 and communicate with the empty slot 310. The output end of the cooling air channel 312 is correspondingly arranged with the upper part of the pressing plate 306. A guide plate 311 is fixedly connected to the intake end of the cooling air channel 312 of the double-headed terminal block 301; by adding the structure of the air flow channel and the butt wire 313 in the double-headed terminal block 301, the electrical series connection between the slots of the terminal block and the function of blowing dust at the slots are achieved.

[0067] Slot series connection: Two adjacent connection heads 307 are connected through the second wire 309 to achieve the series connection between the slots. This means that devices inserted into different slots can share the same electrical connection through the series connection wire. A butt wire 313 is also fixedly installed inside the double-headed terminal block 301, passing through the empty slot 310 of the mounting plate 2, for further series connecting the slots of the double-headed terminal block 301. This series connection design simplifies the wiring operation of multiple devices and reduces the need for repeated wiring.

[0068] Dust Blowing and Cooling: An empty slot 310 is provided between the double-headed terminal blocks 301, and the empty slot 310 communicates with the air guide channel 206 inside the mounting plate 2. The cooling gas enters the empty slot 310 from the air guide channel 206, and through the cooling air channels 312 on both sides of the double-headed terminal block 301, the gas is guided to the upper part of the slot and blown at the butt joint wire head 307 to prevent dust accumulation. The deflector 311 is installed at the air inlet end of the cooling air channel 312 to guide the air flow into the system evenly and ensure the blowing effect.

[0069] When the air flow passes through the cooling air channel 312, it faces the pressure plate 306 at the slot, and can direct the air flow towards the connection head 307, removing possible dust or debris at the slot and preventing dust from having an adverse effect on the electrical connection. At the same time, the introduction of the cooling gas can also reduce the temperature inside the double-headed terminal block 301 and avoid electrical failures caused by overheating.

[0070] To achieve rapid gas flow and adaptive adjustment of the position of the device installation guide rail 203, a door panel 8 is rotatably installed at the front of the cabinet 1, a cover plate 6 is fixedly installed at the upper part of the cabinet 1, an air outlet gap 7 is formed between the cover plate 6 and the cabinet 1, and a plurality of fans 5 are fixedly installed at the upper part of the cabinet 1 for exhausting the heat inside the cabinet 1. The inner cavity of the cabinet 1 communicates with the air outlet gap 7. The mounting plate 2 includes a plate body 201, a bracket 202 is slidably installed at the front of the plate body 201, a guide rail 203 is fixedly installed at the front of the bracket 202, a lead screw 204 is rotatably installed in the middle of the plate body 201, the bracket 202 is screwed to the outside of the lead screw 204, a knob 205 is fixedly connected to the lower part of the lead screw 204, and the knob 205 is rotatably installed on the plate body 201. The bracket 202 is controlled by the knob 205 to perform lifting and adjusting actions.

[0071] The front part of the cabinet 1 is closed or opened by rotating the door panel 8, which is convenient for equipment maintenance and installation. A cover plate 6 is fixedly installed at the upper part of the cabinet 1, and an air outlet gap 7 is reserved between the cover plate 6 and the cabinet 1. This design allows the heat inside the cabinet 1 to be discharged through the gap at the top, avoiding heat accumulation.

[0072] A plurality of fans 5 are installed at the upper part of the cabinet 1. The function of these fans 5 is to accelerate the flow of the internal gas. By guiding the internal hot air flow upward for discharge, it ensures that the temperature inside the cabinet 1 is always within an appropriate range. The air flow generated by the fans 5 enters the air outlet gap 7 through the through inner cavity, thereby achieving effective heat discharge and preventing the inside of the cabinet 1 from overheating.

[0073] The main part of the mounting plate 2 is the plate body 201, and a bracket 202 is slidably installed at the front of the plate body 201. A guide rail 203 is fixedly installed at the front of the bracket 202 for installing devices of different sizes inside the power distribution cabinet. The sliding function of the guide rail 203 allows users to adjust the position according to the size of the device, so that devices of different sizes can be stably installed on the guide rail 203.

[0074] A screw rod 204 is rotatably installed in the middle of the plate body 201. A bracket 202 is screwed outside the screw rod 204. By rotating the screw rod 204, the bracket 202 can be driven to move up and down. The lower part of the screw rod 204 is controlled by a fixedly connected knob 205. When the user rotates the knob 205, the screw rod 204 will push the bracket 202 to perform lifting adjustment. In this way, the guide rail 203 on the bracket 202 can be adjusted in height according to the size of different devices, ensuring that all devices can be accurately installed in the appropriate position without additional adjustment or rearrangement.

[0075] In order to achieve multiple filtration of the cooling gas, an air inlet is provided at the bottom of the cabinet 1. An air filtration component 4 is fitted to the air inlet at the bottom of the cabinet 1. The air filtration component 4 includes a bottom plate 401. The bottom plate 401 is fixed at the air inlet of the cabinet 1. The bottom plate 401 is hollow. A first filter element 402 is installed in an array in the middle of the bottom plate 401. A partition plate 403 is fixedly connected to the upper part of the bottom plate 401. A first air port 404 is provided on one side of the partition plate 403. A top plate 405 is fixedly connected to the upper part of the partition plate 403. A second air port 406 is provided on the side of the top plate 405 away from the first air port 404. A plurality of second filter elements 407 are inserted and installed at equal intervals on the top plate 405. In order to achieve multiple filtration of the cooling gas, further, the first filter element 402 includes a gas guide pipe 4021. The gas guide pipe 4021 is fixed in the bottom plate 401. An inclined first baffle 4022 and a second baffle 4023 are fixedly connected inside the gas guide pipe 4021. The second baffle 4023 is located above the first baffle 4022. The first baffle 4022 and the second baffle 4023 cooperate with the gas guide pipe 4021 to form an inverted triangular collection groove for blocking large particle debris. A third baffle 4024 is fixedly connected to the top of the gas guide pipe 4021. An air outlet 4025 is formed between the gas guide pipe 4021 and the third baffle 4024. The air outlet 4025 communicates with the outside through the gas guide pipe 4021. The second filter element 407 includes a dust collection plate 7071. A filter screen 4072 is fixedly installed inside the dust collection plate 7071. A collection groove is provided on one side of the dust collection plate 7071. The dust collection plate 7071 is inserted and installed on the upper part of the top plate 405 through bolts 4073.

[0076] Air inlet and air filtration component 4: An air inlet is provided at the bottom of the cabinet 1. An air filtration component 4 is installed at the air inlet for filtering the cooling gas entering the cabinet 1. The air filtration component 4 includes a bottom plate 401. The bottom plate 401 is a hollow structure for supporting the filter element. The first filter element 402 installed in an array on the bottom plate 401 plays a role in preliminary filtration.

[0077] Structure of the air duct 4021 in the first filter element 402: The air duct 4021 is fixed inside the bottom plate 401. An inclined first baffle 4022 and a second baffle 4023 are provided inside the air duct 4021. When the cooling gas passes through the air duct 4021, the air flow is guided through these two baffles to form an inverted triangular collection trough. This structure is mainly used to block and collect large particle debris to ensure that it does not enter the interior of the cabinet 1. When the temperature of the cabinet 1 is normal, the fan 5 stops working, and the debris naturally sinks in the collection trough, facilitating subsequent cleaning.

[0078] Secondary filtration: Structure of the partition plate 403 and the top plate 405: After the gas passes through the bottom plate 401 and the first filter element 402, it flows into the second filter assembly area through the first air port 404 on the partition plate 403. The partition plate 403 is used to separate the air flow to ensure that the gas flow path undergoes multiple filtrations. The gas is further filtered in the top plate 405 fixed above the partition plate 403. A second air port 406 is provided on one side of the top plate 405 to allow the gas to pass through.

[0079] Second filter element 407: A number of second filter elements 407 are installed on the top plate 405. Each filter element includes a dust collection plate 7071 and a filter screen 4072 inside. The dust collection plate 7071 is used to collect smaller particulate matter, while the filter screen 4072 further filters the air flow in detail. A collection trough is provided on one side of the dust collection plate 7071 inside the filter screen 4072, specifically for accumulating the filtered dust and debris. This design ensures that the cooling gas can effectively remove fine particulate matter and dust before entering the cabinet 1.

[0080] Gas flow and filtration process: The cooling gas first enters the air filter assembly 4 through the air inlet at the bottom of the cabinet 1, passes through the first baffle 4022 and the second baffle 4023 in the air duct 4021, blocks larger particulate matter, and deposits in the inverted triangular collection trough. When the temperature of the cabinet 1 is too high, the fan 5 starts, forcing the cooling gas into the interior of the cabinet 1 to help reduce the temperature. After passing through the air outlet 4025 of the air duct 4021, the filtered gas enters the second filter assembly.

[0081] After the temperature returns to normal, the fan 5 stops working, and the debris naturally sinks in the collection trough. The gas is further filtered in the second filter element 407 on the top plate 405. The filter screen 4072 and the dust collection plate 7071 ensure a clean air flow through physical blocking and collection. Finally, the cooling gas flows through the inner cavity of the cabinet 1 to complete the cooling operation.

[0082] In the present invention, the internal wiring process is greatly simplified by introducing the pre-wired component 3. The mounting plate 2 provided in the cabinet 1 is used to mount various power distribution cabinet components, and a plurality of terminal blocks are preset on the mounting plate 2. The terminal blocks are distributed longitudinally along the mounting plate 2, and each terminal block is connected by a conductive rod 304 to form a series of series-connected terminal structures. This design allows users to connect the bottom devices to the bottom terminal blocks through wires, while the upper devices can be connected to the middle terminal blocks. Since the position of each terminal block matches the position of its corresponding device, users no longer need to use complex wire ducts for wiring and can easily complete the point-to-point wiring of the equipment. The presence of the conductive rod 304 further simplifies the circuit connection. By standardizing the specifications of the conductive rod 304, not only the error in the connection is reduced, but also the current transfer between adjacent terminals is made more efficient, thereby improving the safety and stability of the wiring. The design of the pre-wired component 3 allows users to avoid measuring and wiring one by one, greatly reducing the cumbersome steps of manual wiring and realizing a "plug and play" connection method. Compared with the traditional wire duct wiring method, it not only solves the problems of complex traditional wiring and chaotic wire materials, but also significantly improves the wiring speed and convenience, greatly optimizing the maintenance management efficiency, and at the same time improving the safety and usability of the equipment.

Claims

1. A power distribution cabinet, comprising a cabinet (1), characterized in that, An installation plate (2) for partitioning the inner cavity of the cabinet (1) is fixedly installed inside the cabinet (1), and the installation plate (2) is used for installing power distribution cabinet components; A pre-wired component (3) fixedly installed on the installation plate (2), and the pre-wired component (3) is used for presetting wires on the installation plate (2), wherein, the pre-wired component (3) includes terminal blocks, and a plurality of the terminal blocks are distributed at different longitudinal positions of the installation plate (2), and a conductive rod (304) for connecting adjacent terminals in series is fixedly connected between the plurality of terminal blocks; The terminal block includes a double-headed terminal block (301); A switch terminal block (303) for controlling the on-off of the conductive rod (304) is also fixedly installed at the rear of the installation plate (2), the switch terminal block (303) is located in the middle of the conductive rod (304), the switch terminal block (303) includes a substrate (3031), the substrate (3031) is fixed to the rear of the installation plate (2), a first screw rod (3033) is rotatably installed on the substrate (3031), a touch plate (3034) is slidably installed inside the substrate (3031), the touch plate (3034) is driven by the first screw rod (3033) to contact the conductive rod (304) to form a circuit or separate from the conductive rod (304) to form an open circuit, and one end of the first screw rod (3033) away from the touch plate (3034) passes through the substrate (3031) and extends to the outside and is fixedly connected with a turning knob (3032); Pressure plates (306) are slidably installed inside both sides of the double-headed terminal block (301), a second screw rod (305) is rotatably installed inside the double-headed terminal block (301), the pressure plates (306) are screwed to the outside of the second screw rod (305), and the pressure plates (306) are driven by the second screw rod (305) to move into the slots to press the wiring heads (307) inserted into the slots; An empty slot (310) is formed between the double-headed terminal blocks (301), an air guide channel (206) is formed inside the installation plate (2), the empty slot (310) communicates with the air guide channel (206), a butt wire (313) for connecting the slots of the double-headed terminal blocks (301) in series is fixedly connected inside the double-headed terminal blocks (301), the butt wire (313) passes through the empty slot (310), cooling air channels (312) communicating with the empty slot (310) are formed inside both sides of the double-headed terminal blocks (301), the output ends of the cooling air channels (312) are correspondingly arranged with the upper parts of the pressure plates (306), and a flow guide plate (311) is fixedly connected to the air inlet ends of the cooling air channels (312) of the double-headed terminal blocks (301).

2. A power distribution cabinet according to claim 1, characterized in that, The double-headed terminal block (301) is pluggably installed at the bottom of the mounting plate (2). Slots for connecting cables are provided on both sides of the double-headed terminal block (301). A single-headed terminal block (302) is pluggably installed on the upper part of the mounting plate (2). A slot for connecting a cable is provided on one side of the single-headed terminal block (302). The double-headed terminal block (301) and the single-headed terminal block (302) are connected by a conductive rod (304).

3. The distribution cabinet according to claim 2, characterized in that, A back plate (9) is fixedly installed at the rear of the cabinet (1). An aviation cable socket (10) that penetrates the inner cavity of the cabinet (1) and the outside world is fixedly installed at the bottom of the back plate (9). The slot on the side of the double-headed terminal block (301) close to the back plate (9) is used to connect the sub-cable of the aviation cable.

4. A power distribution cabinet according to claim 2, characterized in that, There are three double-headed terminal blocks (301). The three double-headed terminal blocks (301) are longitudinally and equidistantly pluggably installed in the mounting plate (2) for installing a horizontal wire groove on the back of the mounting plate (2).

5. A power distribution cabinet according to claim 2, characterized in that, Slots for wiring are respectively provided on both sides of the double-headed terminal block (301). A first wire (308) for connecting internal devices of the power distribution cabinet is fixedly connected to the upper part of the wiring head (307).

6. A power distribution cabinet according to claim 5, characterized in that, The bottoms of two adjacent wiring heads (307) are connected by a second wire (309) to realize the series connection between the slots.

7. A power distribution cabinet according to claim 1, characterized in that, A door panel (8) is rotatably installed at the front of the cabinet (1). A cover plate (6) is fixedly installed on the upper part of the cabinet (1). An air outlet gap (7) is formed between the cover plate (6) and the cabinet (1). A plurality of fans (5) are fixedly installed on the upper part of the cabinet (1) for exhausting the heat inside the cabinet (1). The inner cavity of the cabinet (1) communicates with the air outlet gap (7). The mounting plate (2) includes a plate body (201). A bracket (202) is slidably installed at the front of the plate body (201). A guide rail (203) is fixedly installed at the front of the bracket (202). A lead screw (204) is rotatably installed in the middle of the plate body (201). The bracket (202) is screwed to the outside of the lead screw (204). A knob (205) is fixedly connected to the lower part of the lead screw (204). The knob (205) is rotatably installed on the plate body (201). The bracket (202) is controlled by the knob (205) to perform lifting and adjusting actions.

8. A power distribution cabinet according to claim 7, characterized in that, An air inlet is provided at the bottom of the cabinet (1). An air filtering component (4) is fittedly installed at the air inlet at the bottom of the cabinet (1). The air filtering component (4) includes a bottom plate (401). The bottom plate (401) is fixed at the air inlet of the cabinet (1). The bottom plate (401) is hollow. A first filtering element (402) is arrayed and filled in the middle of the bottom plate (401). A partition plate (403) is fixedly connected to the upper part of the bottom plate (401). A first air port (404) is provided on one side of the partition plate (403). A top plate (405) is fixedly connected to the upper part of the partition plate (403). A second air port (406) is provided on the side of the top plate (405) away from the first air port (404). A plurality of second filtering elements (407) are equidistantly pluggably installed on the top plate (405).

9. A power distribution cabinet according to claim 8, characterized in that, The first filter element (402) includes an air guide pipe (4021) fixed within the bottom plate (401). An inclined first baffle (4022) and a second baffle (4023) are fixedly connected inside the air guide pipe (4021). The second baffle (4023) is located above the first baffle (4022). The first baffle (4022) and the second baffle (4023) cooperate with the air guide pipe (4021) to form an inverted triangular collection groove for blocking large particle debris. A third baffle (4024) is fixedly connected to the top of the air guide pipe (4021). An air outlet (4025) is formed between the air guide pipe (4021) and the third baffle (4024). The air outlet (4025) communicates with the outside through the air guide pipe (4021). The second filter element (407) includes a dust collection plate (7071) with a filter screen (4072) fixedly installed inside. A collection groove is formed on one side of the dust collection plate (7071). The dust collection plate (7071) is installed above the top plate (405) by being inserted with bolts (4073).

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