Power distribution cabinet

Abstract

The invention discloses a power distribution cabinet, and belongs to the field of power distribution cabinets. A power distribution cabinet comprises a cabinet, and the cabinet is fixedly provided with a mounting plate for separating an inner cavity of the cabinet. Wherein the mounting plate is used for mounting power distribution cabinet components; a pre-wiring assembly is fixedly mounted on the mounting plate, and the pre-wiring assembly is used for pre-arranging a wire on the mounting plate; wherein the pre-wiring assembly comprises terminal strips, and conducting rods used for connecting adjacent terminals in series are fixedly connected among the plurality of terminal strips; the internal wiring process is greatly simplified by introducing the pre-wiring assembly, the mounting plate arranged in the cabinet is used for mounting various power distribution cabinet components, a plurality of terminal strips are pre-arranged on the mounting plate, the terminal strips are distributed in the longitudinal direction of the mounting plate, and the terminal strips are connected through the conducting rods to form a series of series-connected terminal structures, so that the wiring efficiency is improved. And a complicated wire slot is not needed for winding, and point-to-point wiring of equipment can be easily completed.

Description

Technical Field

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

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

[0003] The patent with the publication number CN110474238A in the conventional technology discloses a shockproof distribution cabinet, including a cabinet box, a first spring and an insulating plate, a cabinet seat is arranged at the bottom of the cabinet box, and slots are provided on both sides of the bottom of the cabinet seat, wherein a card plate is connected inside the card plate, a sleeve is provided on one side surface of the card plate, a threaded rod is connected inside the sleeve, a nut is connected to the upper part of the threaded rod near the sleeve, a buffer pad is provided below the threaded rod near the sleeve, the first spring is sleeved on the outer side of the threaded rod near the lower part of the buffer pad, and the threaded rod and the first spring are connected to the inner part of the base through a first cylindrical groove. The shockproof distribution cabinet is provided with a sleeve, and when the position of the distribution cabinet is vibrated, the first spring below the buffer pad and the second spring below the first groove are squeezed and contracted, so that the first spring can damp the four corners of the cabinet seat through the sleeve above the buffer pad, thereby facilitating the damping of the distribution cabinet.

[0004] However, there are some problems with traditional technology: traditional devices use wire ducts as wiring tools. When wiring the devices inside the distribution cabinet, the wires need to be pulled into the horizontal wire duct, then wound through the wire ducts on both sides, and then lead into the horizontal wire duct where the docking device is located, and finally reach the docking device; the whole process requires cumbersome operations, which greatly reduces the wiring speed. If point-to-point wiring is directly used, a large amount of wires will block the devices inside the electrical cabinet, and the wires will be messy, which is not conducive to maintenance. Summary of the invention

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

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

[0007] A power distribution cabinet comprises a cabinet, on which a mounting plate is fixedly installed to separate the inner cavity of the cabinet, and the mounting plate is used to install the power distribution cabinet components; a pre-wiring component is fixedly installed on the mounting plate, and the pre-wiring component is used to pre-set wires on the mounting plate, wherein the pre-wiring component comprises a terminal row, a plurality of the terminal rows are distributed at different longitudinal positions of the mounting plate, and a conductive rod for connecting adjacent terminals in series is fixedly connected between the plurality of terminal rows.

[0008] In order to realize the docking operation of the preset terminal row, preferably, the terminal row includes a double-head terminal row, which is plugged and installed on the bottom of the mounting plate, and slots for connecting cables are provided on both sides of the double-head terminal row. A single-head terminal row is plugged and installed on the upper part of the mounting plate, and a slot for connecting cables is provided on one side of the single-head terminal row. The double-head terminal row and the single-head terminal row are connected by a conductive rod.

[0009] In order to facilitate wiring at the rear of the cabinet and wiring with the external aviation line sub-cables, a back panel is further fixedly installed at the rear of the cabinet, and an aviation line socket that passes through the cabinet inner cavity box and the outside is fixedly installed at the bottom of the back panel, and the slot on the side of the double-head terminal block close to the back panel is used to connect the aviation line sub-cables.

[0010] In order to realize the individual on-off control of the conductive rods between the terminal rows, further, a switch terminal row for controlling the on-off of the conductive rods is fixedly installed at the rear of the mounting plate, and the switch terminal row is located in the middle of the conductive rods. The switch terminal row includes a substrate, and the substrate is fixed at the rear of the mounting plate. A first screw is rotatably installed on the substrate, and a touch plate is slidably installed inside the substrate. The touch plate is driven by the first screw to contact the conductive rod to realize the passage or separate from the conductive rod to realize the disconnection. The end of the first screw away from the touch plate extends through the substrate to the outside and is fixedly connected to a knob.

[0011] In order to reduce the use of conductive rods, multiple double-head terminal blocks are used, and wires are used at the rear of the cabinet for wiring operations. While reducing winding, quick wiring is performed without affecting the appearance. Furthermore, three double-head terminal blocks are provided, and the three double-head terminal blocks are longitudinally equidistantly plugged in and installed in the mounting plate, which are used to install horizontal wire grooves on the back of the mounting plate, so that wiring operations can be performed without passing through the vertical wire grooves on both sides.

[0012] In order to achieve quick connection between the terminal block and the device, further, slots for connecting wires are respectively opened on both sides of the double-headed terminal block, and pressure plates are slidably installed inside the two sides of the double-headed terminal block. A second screw is rotatably installed inside the double-headed terminal block, and the second screw is screwed to the pressure plate on the outside. The pressure plate is driven by the second screw to move into the slot and pressurize the wiring head in the slot, and the upper part of the wiring head is fixedly connected to a first wire for connecting the internal devices of the distribution cabinet.

[0013] In order to realize the series connection between the slots of the terminal row and blow away the dust at the slots, further, the bottoms of two adjacent terminal heads are connected by a second wire to realize the series connection between the slots, an empty slot is opened between the double-headed terminal rows, an air guide channel is opened inside the mounting plate, the empty slot is connected to the air guide channel, a docking wire is fixedly connected inside the double-headed terminal row for connecting the slots of the double-headed terminal row in series, the docking wire passes through the empty slot, cooling air ducts connected to the empty slots are opened on both sides of the double-headed terminal row, the cooling air duct output end is arranged corresponding to the upper part of the pressure plate, and the cooling air duct inlet end of the double-headed terminal row is fixedly connected to a guide plate.

[0014] In order to achieve rapid gas flow and adaptive position adjustment of the device mounting guide rail, further, a door panel is rotatably installed on the front of the cabinet, a cover plate is fixedly installed on 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 on the upper part of the cabinet for discharging heat inside the cabinet, the inner cavity of the cabinet is connected with the air outlet gap, the mounting plate includes a plate body, a bracket is slidably installed on the front part of the plate body, a guide rail is fixedly installed on the front part of the bracket, a screw rod is rotatably installed on the middle part of the plate body, the outer part of the screw rod is screwed to the bracket, a knob is fixedly connected to the lower part of the screw rod, the knob is rotatably installed on the plate body, and the bracket is controlled by the knob to perform lifting and lowering adjustment actions.

[0015] In order to achieve multiple filtration of the cooling gas, further, an air inlet is provided at the bottom of the cabinet, and an air filter assembly is installed in conjunction with the air inlet at the bottom of the cabinet. The air filter assembly includes a base plate, and the base plate is fixed at the air inlet of the cabinet. The base plate is hollow, and a first filter element is filled and installed in the middle array of the base plate. A partition is fixedly connected to the upper part of the base plate, a first air port is opened on one side of the partition, and a top plate is fixedly connected to the upper part of the partition, a second air port is opened on the side of the top plate away from the first air port, and a plurality of second filters are equidistantly plugged and installed on the top plate.

[0016] In order to achieve multiple filtration of the cooling gas, further, the first filter element includes an air duct, the air duct is fixed in the base plate, the air duct is fixedly connected with an inclined first baffle and a second baffle, the second baffle is located at the upper part of the first baffle, the first baffle and the second baffle cooperate with the air duct to form an inverted triangular collection groove for blocking large particles of debris, the top of the air duct is fixedly connected with a third baffle, an air outlet is formed between the air duct and the third baffle, the air outlet is connected to the outside through the air duct, the second filter element includes a dust collecting plate, a filter screen is fixedly installed inside the dust collecting plate, a collection groove is provided on one side of the dust collecting plate, and the dust collecting plate is installed on the upper part of the top plate by bolt insertion.

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

[0018] 1. This power distribution cabinet greatly simplifies the internal wiring process by introducing pre-wired components. The mounting plate set in the cabinet is used to install various power distribution cabinet components. Multiple terminal rows are preset on the mounting plate. The terminal rows are distributed along the longitudinal direction of the mounting plate. Each terminal row is connected by a conductive rod to form a series of terminal structures in series. This design allows users to connect the bottom device to the bottom terminal row through wires, and the upper device can be connected to the middle terminal row. Since the position of each terminal row matches the position of its corresponding device, users no longer need to use complicated wire trough winding and can easily complete the point-to-point wiring of the equipment.

[0019] 2. The power distribution cabinet realizes the controllability of the on and off of the conductive rods between the terminal blocks by arranging the switch terminal block at the rear of the mounting plate, 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 the user to control the on and off of the circuit as needed.

[0020] 3. In another embodiment of the power distribution cabinet, the use of a single-head terminal block is eliminated, and only three double-head terminal blocks are used for wiring operations, and the wiring operations are connected by wires at the rear of the cabinet. The three double-head terminal blocks are arranged equidistantly along the longitudinal direction of the mounting plate and are plugged and installed on the inner side of the mounting plate. Each double-head terminal block has double-sided slots, which can connect two groups of front and rear cables at the same time. In order to reduce the winding path of the cables, a horizontal wire groove is also installed on the back of the mounting plate. The rear cables are connected through the horizontal wire groove without passing through the vertical wire grooves on both sides, thereby simplifying the wiring path.

[0021] 4. An empty slot is opened between the double-head terminal blocks, and the empty slot is connected to the air guide channel inside the mounting plate. The cooling gas enters the empty slot from the air guide channel, and guides the gas to the upper part of the slot through the cooling air channels on both sides of the double-head terminal block and blows the terminal head to prevent dust accumulation. The guide plate is installed at the air inlet end of the cooling air channel to guide the air flow to enter the system evenly to ensure the blowing effect. The cooling gas first enters the air filter assembly through the air inlet at the bottom of the cabinet, passes through the first baffle and the second baffle in the air guide duct, blocks larger particles, and deposits in the inverted triangle collection tank. When the cabinet temperature is too high, the fan starts to force the cooling gas into the cabinet to help lower the temperature. The filtered gas enters the second filter assembly through the air outlet of the air guide duct for efficient blowing.

[0022] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. Compared with the traditional wire trough wiring method, the distribution cabinet of the present invention adopts centralized wiring management, avoiding the problem of a large number of wires crossing and piling up in the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a power distribution cabinet proposed by the present invention;

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

[0025] Figure 3 A schematic diagram of a cabinet cross-sectional structure of a power distribution cabinet proposed by the present invention;

[0026] Figure 4 A schematic diagram of the structure of a single-head terminal block of a power distribution cabinet proposed by the present invention;

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

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

[0029] Figure 7 A schematic diagram of a screw rod structure of a power distribution cabinet proposed by the present invention;

[0030] Figure 8 A schematic diagram of the double-ended terminal block structure of a power distribution cabinet proposed by the present invention;

[0031] Fig. 9 A schematic diagram of the wiring head structure of a power distribution cabinet proposed by the present invention;

[0032] Fig.10A schematic diagram of the structure of a double-ended terminal block of another embodiment of a power distribution cabinet proposed by the present invention;

[0033] Fig.11 A schematic diagram of a second conductor structure of a power distribution cabinet proposed by the present invention;

[0034] Fig.12 This is a schematic diagram of the structure of an air filter assembly of a power distribution cabinet proposed by the present invention;

[0035] Fig.13 This is a schematic diagram of the explosion structure of an air filter assembly of a power distribution cabinet proposed by the present invention;

[0036] Fig.14 This is a schematic cross-sectional structure diagram of a first filter element of a power distribution cabinet proposed by the present invention;

[0037] Fig.15 A schematic diagram of the plate structure of another embodiment of a power distribution cabinet proposed by the present invention;

[0038] Fig.16 A schematic diagram of the connecting wire structure of a power distribution cabinet proposed by the present invention;

[0039] Fig.17 A power distribution cabinet proposed by the present invention Fig.16 Schematic diagram of the structure of part B.

[0040] In the figure: 1, cabinet; 2, mounting plate; 201, plate body; 202, bracket; 203, guide rail; 204, screw rod; 205, knob; 206, air guide channel; 3, pre-wired components; 301, double-end terminal block; 302, single-end terminal block; 303, switch terminal block; 3031, base plate; 3032, knob; 3033, first screw rod; 3034, touch plate; 304, conductive rod; 305, second screw rod; 306, pressure plate; 307, terminal head; 308, first wire; 309, second wire; 310, empty slot; 311, guide plate; 312, cooling air duct; 313, docking wire; 4, air filter assembly; 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 outlet; 405, top plate; 406, second air outlet; 407, second filter element; 7071, dust collecting plate; 4072, filter; 4073, bolt; 5, fan; 6, cover plate; 7, air outlet gap; 8, door panel; 9, back panel; 10, aviation line socket. DETAILED DESCRIPTION

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

[0042] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 cannot be understood as a limitation on the present invention.

[0043] Example:

[0044] Reference Figure 1-Figure 17 A power distribution cabinet comprises a cabinet 1, the cabinet 1 is fixedly provided with a mounting plate 2 for partitioning the inner cavity of the cabinet 1, the mounting plate 2 is used for installing the power distribution cabinet components; a pre-wiring component 3 is fixedly installed on the mounting plate 2, the pre-wiring component 3 is used for presetting wires on the mounting plate 2; wherein the pre-wiring component 3 comprises a terminal row, a plurality of terminal rows 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 plurality of terminal rows.

[0045] The above-mentioned power distribution cabinet greatly simplifies the internal wiring process by introducing the pre-wiring component 3. The mounting plate 2 provided in the cabinet 1 is used to install various power distribution cabinet components, and a plurality of terminal rows are preset on the mounting plate 2. The terminal rows are distributed along the longitudinal direction of the mounting plate 2, and each terminal row is connected by a conductive rod 304 to form a series of terminal structures in series. This design allows the user to connect the bottom device to the bottom terminal row through a wire, and the upper device can be connected to the middle terminal row at the same time. Since the position of each terminal row matches the position of its corresponding device, the user no longer needs to use complicated wire trough winding, and can easily complete the point-to-point wiring of the device.

[0046] The presence of the conductive rod 304 further simplifies the circuit connection. The standardized specifications of the conductive rod 304 not only reduce the error in the connection, but also make the current transfer between adjacent terminals more efficient, thereby improving the safety and stability of the wiring. The design of the pre-wired component 3 eliminates the need for users to measure and wire one by one, greatly reducing the tedious steps of manual wiring and achieving a "plug and play" connection method.

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

[0048] In order to realize the docking operation of the preset terminal row, preferably, the terminal row includes a double-head terminal row 301, which is plugged and installed at the bottom of the mounting plate 2, and slots for connecting cables are provided on both sides of the double-head terminal row 301. A single-head terminal row 302 is plugged and installed on the upper part of the mounting plate 2, and a slot for connecting cables is provided on one side of the single-head terminal row 302. The double-head terminal row 301 and the single-head terminal row 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-head terminal block 301 and a single-head terminal block 302, and is installed at the bottom and top of the mounting plate 2, respectively. The double-head terminal block 301 has slots on both sides, which can connect two sets of cables at the same time, thereby supporting the parallel connection of multiple devices. The single-head terminal block 302 has only one side with a slot for connecting the cables of the upper device. The double-head terminal block 301 and the single-head terminal block 302 are electrically connected through a conductive rod 304.

[0050] In operation, the cables of the bottom device are connected to the lower slots of the double-ended terminal block 301, while the cables of the upper device are connected to the slots of the single-ended terminal block 302. Since the conductive rod 304 electrically connects the double-ended terminal block 301 and the single-ended terminal block 302, the entire circuit is seamlessly connected 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 device more efficient. The double-sided slots of the double-ended terminal block 301 allow the bottom device to be connected to multiple upper devices at the same time through the conductive rod 304, without winding wires or using too many cables, thereby greatly simplifying the wiring work. The combination of the double-ended terminal block 301, the single-ended terminal block 302 and the conductive rod 304 makes the entire system connection more concise and orderly.

[0052] In order to facilitate wiring at the rear of the cabinet 1 and wiring with the external aviation line sub-cable, a back panel 9 is further fixedly installed at the rear of the cabinet 1, and an aviation line socket 10 that passes through the inner cavity box of the cabinet 1 and the outside is fixedly installed at the bottom of the back panel 9. The slot on the side of the double-head terminal block 301 close to the back panel 9 is used to connect the aviation line sub-cable.

[0053] In actual application, the external aviation line enters the cabinet 1 through the socket, and the sub-cable of the aviation line is connected to the rear slot of the double-ended terminal block 301 through the backplane 9. Since the double-ended terminal block 301 has a double-sided slot design, the sub-cable of the aviation line can be quickly plugged into the double-ended terminal block 301 at the backplane 9, and at the same time, the cable of the internal device can be connected to the front slot of the double-ended terminal block 301. In this way, the sub-cable of the aviation line is electrically connected to the internal device through the double-ended terminal block 301 to form a complete circuit.

[0054] The key to this design is the reasonable layout of the backplane 9 and the aviation line socket 10, so that the external cables can be easily connected from the rear of the cabinet 1 without affecting the wiring work inside the cabinet 1. The double-sided slot design of the double-ended terminal block 301 ensures that the external cables and internal devices can be connected independently, avoiding the confusion of wiring and the space occupation problem caused by the long cables.

[0055] In order to realize the individual on-off control of the conductive rod 304 between the terminal rows, further, a switch terminal row 303 for controlling the on-off of the conductive rod 304 is fixedly installed at the rear of the mounting plate 2. The switch terminal row 303 is located in the middle of the conductive rod 304. The switch terminal row 303 includes a substrate 3031. The substrate 3031 is fixed to the rear of the mounting plate 2. The substrate 3031 is rotatably installed with a first screw 3033. A touch plate 3034 is slidably installed inside the substrate 3031. The touch plate 3034 is driven by the first screw 3033 to contact the conductive rod 304 to realize the passage or separate from the conductive rod 304 to realize the disconnection. The end of the first screw 3033 away from the touch plate 3034 extends through the substrate 3031 to the outside and is fixedly connected to a knob 3032.

[0056] By arranging the switch terminal block 303 at the rear of the mounting plate 2, the controllability of the on and 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 rods 304 and the terminal block, allowing the user to control the on and off of the circuit as needed.

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

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

[0059] In order to reduce the use of conductive rods 304, multiple double-head terminal blocks 301 are used, and wires are used to perform wiring operations at the rear of the cabinet 1. While reducing winding, quick wiring is performed without affecting the appearance. In addition, three double-head terminal blocks 301 are provided, and the three double-head terminal blocks 301 are longitudinally equidistantly plugged in and installed in the mounting plate 2, which are used to install horizontal wire grooves on the back of the mounting plate 2, so that wiring operations can be performed without passing through the vertical line grooves on both sides.

[0060] In another embodiment, the use of the single-end terminal block 302 is eliminated, and only three double-end terminal blocks 301 are used for wiring operations, and the connection is made through wires at the rear of the cabinet 1. The three double-end terminal blocks 301 are arranged equidistantly along the longitudinal direction of the mounting plate 2 and are plugged and installed on the inner side of the mounting plate 2. Each double-end terminal block 301 has double-sided slots, which can connect two groups of cables in the front and rear at the same time. In order to reduce the winding path of the cable, a horizontal wire groove is also installed on the back of the mounting plate 2, through which the rear cables are connected without passing through the vertical wire grooves on both sides, thereby simplifying the wiring path.

[0061] During specific operation, each device inside the cabinet 1 is connected to the front slot of the double-ended terminal block 301 through a wire, and the rear cables are directly connected to the rear slot of the double-ended terminal block 301 through the wires on the back of the cabinet 1. Through the horizontal wire grooves installed on the back panel 9, the cables at the rear can be organized more efficiently, avoiding complicated winding operations while keeping the interior of the cabinet 1 neat and beautiful. This design eliminates the use of vertical wire grooves and relies on the horizontal wire grooves on the back panel 9 to achieve a reasonable distribution of cables, which not only reduces the use of conductive rods 304, but also ensures the rapid completion of wiring. Due to the double-sided connection structure of the double-ended terminal block 301, the arrangement of cables is more flexible, and the connection between internal and external devices becomes simpler and more efficient.

[0062] In order to realize the quick connection between the terminal block and the device, further, slots for connecting wires are respectively opened on both sides of the double-head terminal block 301, and pressure plates 306 are slidably installed inside the double-head terminal block 301. A second screw 305 is rotatably installed inside the double-head terminal block 301. The second screw 305 is screwed to the pressure plate 306 on the outside. The pressure plate 306 is driven by the second screw 305 to move to the slot and connect to the terminal head 307 in the slot. The upper part of the terminal head 307 is fixedly connected to the first wire 308 for connecting the internal devices of the distribution cabinet.

[0063] The structures of the pressure plate 306 and the second screw 305 are added to the slots on both sides of the double-ended terminal block 301 to realize quick crimping of cables. Specifically, the slots on both sides of the double-ended terminal block 301 are used to connect cables, and the pressure plate 306 is slidably installed inside the slot, and the second screw 305 is connected to the pressure plate 306 by threading to drive it to move in the slot. By rotating the second screw 305, the pressure plate 306 moves forward, firmly pressing the cable terminal 307 in the slot, thereby realizing a reliable electrical connection.

[0064] In actual operation, after the user inserts the terminal block 307 into the slot of the double-ended terminal block 301, the second screw 305 is rotated, and the screw drives the pressing plate 306 to move forward, and the terminal block 307 is crimped into the slot to ensure that the cable is in close contact with the terminal block. The upper part of the terminal block 307 is connected to the device inside the power distribution cabinet through the first wire 308, thereby realizing the electrical connection between the device and the terminal block.

[0065] The introduction of the pressure plate 306 and the screw structure makes the connection between the cable and the terminal block faster and more stable, avoiding the looseness or poor contact problems in the traditional wiring method. At the same time, the precise adjustment mechanism of the screw also ensures that the crimping force of each connection is uniform, improving the safety and stability of the overall system.

[0066] In order to realize the series connection between the slots of the terminal row and blow away the dust at the slots, further, the bottoms of two adjacent terminal heads 307 are connected by a second wire 309 to realize the series connection between the slots, an empty slot 310 is opened between the double-headed terminal row 301, an air guide channel 206 is opened inside the mounting plate 2, the empty slot 310 is connected with the air guide channel 206, and a docking wire 313 is fixedly connected inside the double-headed terminal row 301 for connecting the slots of the double-headed terminal row 301 in series, and the docking wire 313 passes through the empty slot 310, and cooling air channels 312 that are connected with the empty slot 310 are opened on both sides of the double-headed terminal row 301, and the output end of the cooling air channel 312 is correspondingly arranged with the upper part of the pressure plate 306, and the air inlet end of the cooling air channel 312 of the double-headed terminal row 301 is fixedly connected with a guide plate 311; by adding the structure of the air flow channel and the docking wire 313 in the double-headed terminal row 301, the electrical series connection between the terminal row slots and the dust blowing function at the slots are realized.

[0067] Slots are connected in series: two adjacent terminals 307 are connected by a second wire 309, so that the slots are connected in series. This means that devices inserted into different slots can share the same electrical connection through the series wire. A docking wire 313 is also fixed inside the double-ended terminal block 301, which runs through the empty slot 310 of the mounting plate 2 to further connect the slots of the double-ended terminal block 301 in series. This series 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-ended terminal block 301, and the empty slot 310 is connected to 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 passes through the cooling air channels 312 on both sides of the double-ended terminal block 301, guiding the gas to the upper part of the slot and blowing at the terminal 307 to prevent dust accumulation. The guide plate 311 is installed at the air inlet end of the cooling air channel 312 to guide the air flow to enter the system evenly to ensure the blowing effect.

[0069] When the airflow passes through the cooling air channel 312, it is opposite to the pressure plate 306 at the slot, and the airflow can be directed to the terminal head 307 to remove dust or debris that may exist at the slot, thereby preventing the dust from having an adverse effect on the electrical connection. At the same time, the introduction of cooling gas can also reduce the temperature inside the double-head terminal block 301, thereby avoiding electrical failures caused by overheating.

[0070] In order to achieve rapid gas flow and adaptive position adjustment of the device mounting guide rail 203, a door panel 8 is rotatably installed on 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 discharging heat from the inside of the cabinet 1, the inner cavity of the cabinet 1 is connected with the air outlet gap 7, the mounting plate 2 includes a plate body 201, a bracket 202 is slidably installed on the front part of the plate body 201, a guide rail 203 is fixedly installed on the front part of the bracket 202, a screw rod 204 is rotatably installed on the middle part of the plate body 201, the outer part of the screw rod 204 is screwed to the bracket 202, a knob 205 is fixedly connected to the lower part of the screw rod 204, the knob 205 is rotatably installed on the plate body 201, and the bracket 202 is controlled by the knob 205 to adjust the lifting and lowering action.

[0071] The front of the cabinet 1 can be closed or opened by rotating the door panel 8, which is convenient for equipment maintenance and installation. A cover plate 6 is fixedly installed on 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 to avoid heat accumulation.

[0072] A plurality of fans 5 are installed on the upper part of the cabinet 1. The function of these fans 5 is to accelerate the flow of internal air and guide the internal hot air flow to be discharged upward to ensure 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 cabinet 1 from overheating.

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

[0074] A rotatably mounted screw rod 204 is disposed in the middle of the plate body 201. The outer portion of the screw rod 204 is screwed to the bracket 202. By rotating the screw rod 204, the bracket 202 can be driven to move up and down. The lower portion 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 move up and down. 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 the need for 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, and an air filter assembly 4 is installed in conjunction with the air inlet at the bottom of the cabinet 1. The air filter assembly 4 includes a bottom plate 401, which is fixed at the air inlet of the cabinet 1. The bottom plate 401 is hollow, and a first filter element 402 is filled and installed in the middle array 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 opened 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 opened on the side of the top plate 405 away from the first air port 404, and a plurality of second filter elements 407 are equidistantly plugged and installed on the top plate 405. In order to achieve multiple filtration of the cooling gas, further, the first filter element 402 includes an air guide tube 4021, the air guide tube 4021 is fixed in the bottom plate 401, and the air guide tube 4021 is fixedly connected with an inclined first baffle 4022 and a second baffle 4023, the second baffle 4023 is located on the upper part of the first baffle 4022, and the first baffle 4022 and the second baffle 4023 cooperate with the air guide tube 4021 to form an inverted triangle collection groove for blocking large particles of debris. A third baffle plate 4024 is fixedly connected to the top of the air duct 4021, and an air outlet 4025 is formed between the air duct 4021 and the third baffle plate 4024. The air outlet 4025 is connected to the outside through the air duct 4021. The second filter element 407 includes a dust collecting plate 7071, and a filter screen 4072 is fixedly installed inside the dust collecting plate 7071. A collecting groove is provided on one side of the dust collecting plate 7071, and the dust collecting plate 7071 is installed on the upper part of the top plate 405 by means of bolts 4073.

[0076] Air inlet and air filter assembly 4: The air inlet is arranged at the bottom of the cabinet 1, and the air filter assembly 4 is installed at the air inlet, which is used to filter the cooling air entering the cabinet 1. The air filter assembly 4 includes a bottom plate 401, and the bottom plate 401 is a hollow structure, which is used to support the filter element. The first filter element 402 installed in an array on the bottom plate 401 plays a role of preliminary filtering.

[0077] The structure of the air duct 4021 in the first filter element 402: the air duct 4021 is fixed inside the bottom plate 401, and 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 the two baffles to form an inverted triangle collection slot. This structure is mainly used to block and collect large particles of debris to ensure that they do not enter 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 slot, which is convenient for subsequent cleaning.

[0078] Secondary filtration: structure of partition 403 and top plate 405: After passing through bottom plate 401 and first filter element 402, the gas will flow into the second filter component area through first gas port 404 on partition 403. Partition 403 is used to separate the gas flow to ensure that the gas flow path is filtered multiple times. The gas is further filtered in top plate 405 fixed on the top of partition 403. A second gas port 406 is provided on one side of top plate 405 to allow gas to pass through.

[0079] Second filter element 407: A plurality of second filter elements 407 are installed on the top plate 405, each of which includes a dust collecting plate 7071 and an internal filter screen 4072 structure. The dust collecting plate 7071 is used to collect smaller particles, while the filter screen 4072 further finely filters the airflow. A collection groove is provided on one side of the dust collecting plate 7071 in the filter screen 4072, which is specifically used to accumulate filtered dust and debris. This design ensures that fine particles and dust can be effectively removed from the cooling gas before entering the cabinet 1.

[0080] Gas flow and filtering 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 particles, and is deposited in the inverted triangle collection groove. When the temperature of the cabinet 1 is too high, the fan 5 starts to force the cooling gas into the cabinet 1 to help reduce the temperature. The filtered gas enters the second filter assembly through the air outlet 4025 of the air duct 4021.

[0081] After the temperature returns to normal, the fan 5 stops working and the debris naturally sinks in the collection tank. The gas is further filtered in the second filter element 407 on the top plate 405, and the filter screen 4072 and the dust collecting plate 7071 ensure clean airflow 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-wiring component 3. The mounting plate 2 provided in the cabinet 1 is used to install various types of power distribution cabinet components, and a plurality of terminal rows are preset on the mounting plate 2. The terminal rows are distributed along the longitudinal direction of the mounting plate 2, and each terminal row is connected by a conductive rod 304 to form a series of terminal structures in series. This design allows the user to connect the bottom device to the bottom terminal row through a wire, and the upper device can be connected to the middle terminal row at the same time. Since the position of each terminal row matches the position of its corresponding device, the user no longer needs to use complex wire trough winding, and can easily complete the point-to-point wiring of the device. The presence of the conductive rod 304 further simplifies the circuit connection. Through the standardized 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-wiring component 3 eliminates the need for users to measure and wire one by one, greatly reducing the cumbersome steps of manual wiring, and realizing a "plug and play" connection method. Compared with the traditional cable trough wiring method, it not only solves the problems of complex traditional wiring and chaotic wires, but also significantly improves the speed and convenience of wiring, greatly optimizes the maintenance and management efficiency, and improves the safety and availability of equipment.

Claims

1. A power distribution cabinet, comprising a cabinet (1), characterized in that: A mounting plate (2) is fixedly installed in the cabinet (1) to separate the inner cavity of the cabinet (1), and the mounting plate (2) is used to install power distribution cabinet components; A pre-wired component (3) fixedly mounted on the mounting plate (2), the pre-wired component (3) being used to pre-set wires on the mounting plate (2). The pre-wiring assembly (3) comprises a terminal row, a plurality of the terminal rows are distributed at different longitudinal positions of the mounting plate (2), and conductive rods (304) for connecting adjacent terminals in series are fixedly connected between the plurality of terminal rows.

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

3. A power distribution cabinet according to claim 2, characterized in that: A back panel (9) is fixedly installed at the rear of the cabinet (1), and an aviation line socket (10) is fixedly installed at the bottom of the back panel (9) and passes through the outside of the inner cavity box of the cabinet (1). The slot on the side of the double-head terminal block (301) close to the back panel (9) is used to connect the sub-cables of the aviation line.

4. A power distribution cabinet according to claim 2, characterized in that: A switch terminal block (303) for controlling the on and off of the conductive rod (304) is also fixedly mounted on the rear of the mounting plate (2); the switch terminal block (303) is located in the middle of the conductive rod (304); the switch terminal block (303) comprises a base plate (3031); the base plate (3031) is fixed to the rear of the mounting plate (2); a first screw rod (3033) is rotatably mounted on the base plate (3031); a touch plate (3034) is slidably mounted inside the base plate (3031); the touch plate (3034) is driven by the first screw rod (3033) to contact the conductive rod (304) to realize a passage or to separate from the conductive rod (304) to realize a disconnection; an end of the first screw rod (3033) away from the touch plate (3034) passes through the base plate (3031) and extends to the outside and is fixedly connected to a knob (3032).

5. A power distribution cabinet according to claim 2, characterized in that: The double-ended terminal blocks (301) are provided with three, and the three double-ended terminal blocks (301) are longitudinally equidistantly plugged and installed in the mounting plate (2), and are used to install a horizontal wire groove on the back of the mounting plate (2), so that wiring operations can be performed without passing through the vertical wire grooves on both sides.

6. A power distribution cabinet according to claim 2, characterized in that: Slots for connecting wires are respectively provided on both sides of the double-headed terminal block (301), and pressure plates (306) are slidably installed inside the two sides of the double-headed terminal block (301). A second screw rod (305) is rotatably installed inside the double-headed terminal block (301), and the second screw rod (305) is externally screwed to the pressure plate (306). The pressure plate (306) is driven by the second screw rod (305) to move into the slot and connect to the wiring head (307) in the slot, and the upper part of the wiring head (307) is fixedly connected to a first wire (308) for connecting internal components of the power distribution cabinet.

7. A power distribution cabinet according to claim 6, characterized in that: The bottoms of two adjacent terminal heads (307) are connected by a second wire (309) to realize series connection between the slots; an empty slot (310) is provided between the double-headed terminal blocks (301); an air guide channel (206) is provided inside the mounting plate (2); the empty slot (310) is connected to the air guide channel (206); a butt-joint wire (313) is fixedly connected inside the double-headed terminal block (301) for connecting the slots of the double-headed terminal block (301) in series; the butt-joint wire (313) passes through the empty slot (310); cooling air channels (312) connected to the empty slot (310) are provided on both sides of the double-headed terminal block (301); the output end of the cooling air channel (312) is arranged corresponding to the upper part of the pressing plate (306); and the air inlet end of the cooling air channel (312) of the double-headed terminal block (301) is fixedly connected to a guide plate (311).

8. A power distribution cabinet according to claim 1, characterized in that: The cabinet (1) has a door panel (8) rotatably mounted on the front, a cover panel (6) fixedly mounted on the top of the cabinet (1), an air outlet gap (7) formed between the cover panel (6) and the cabinet (1), a plurality of fans (5) fixedly mounted on the top of the cabinet (1) for discharging heat from the interior of the cabinet (1), the inner cavity of the cabinet (1) and the air outlet gap (7) being connected, the mounting plate (2) comprising a plate body (201), the front of the plate body (201) being slidably mounted A bracket (202) is provided, a guide rail (203) is fixedly installed at the front of the bracket (202), a screw rod (204) is rotatably installed at the middle of the plate body (201), the screw rod (204) is externally screwed to the bracket (202), a knob (205) is fixedly connected at the bottom of the screw rod (204), the knob (205) is rotatably installed on the plate body (201), and the bracket (202) is controlled by the knob (205) to adjust the lifting and lowering action.

9. A power distribution cabinet according to claim 8, characterized in that: An air inlet is provided at the bottom of the cabinet (1), and an air filter assembly (4) is installed in correspondence with the air inlet at the bottom of the cabinet (1). The air filter assembly (4) comprises a bottom plate (401), the bottom plate (401) is fixed at the air inlet of the cabinet (1), the bottom plate (401) is hollow, and 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 top 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 top of the partition plate (403), a second air port (406) is provided on a side of the top plate (405) away from the first air port (404), and a plurality of second filter elements (407) are installed on the top plate (405) at equal intervals.

10. A power distribution cabinet according to claim 9, characterized in that: The first filter element (402) comprises an air guide tube (4021), the air guide tube (4021) is fixed inside the bottom plate (401), a first baffle plate (4022) and a second baffle plate (4023) are fixedly connected inside the air guide tube (4021), the second baffle plate (4023) is located on the upper part of the first baffle plate (4022), the first baffle plate (4022) and the second baffle plate (4023) cooperate with the air guide tube (4021) to form an inverted triangular collection groove for blocking large particles of debris, and the top of the air guide tube (4021) A third baffle (4024) is fixedly connected thereto; an air outlet (4025) is formed between the air guide pipe (4021) and the third baffle (4024); the air outlet (4025) is communicated with the outside through the air guide pipe (4021); the second filter element (407) comprises a dust collecting plate (7071); a filter screen (4072) is fixedly installed inside the dust collecting plate (7071); a collection groove is provided on one side of the dust collecting plate (7071); the dust collecting plate (7071) is installed on the upper part of the top plate (405) by means of bolts (4073).

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