A power distribution automation cabinet

Abstract

The present invention discloses a power distribution automation cabinet, comprising a cabinet body, a flow guide baffle, a lower flow equalizing plate, a lower flow equalizing hole, an upper flow equalizing plate, an upper flow equalizing hole, an air outlet channel, a lightweight plate, a limit block, and a dust removal mechanism. A temperature sensor senses the temperature inside the cabinet body. When the temperature exceeds a high temperature threshold, a controller controls the centrifugal fan to operate. The operation of the centrifugal fan forms a negative pressure at the upper portion of the dust removal chamber, and then the external cold air enters the lower portion of the dust removal chamber through the air inlet. The air is then filtered by a dust bag and then enters the left side of the flow guide baffle inside the cabinet body under the action of the centrifugal fan. The cold air then moves downward to the bottom of the lower flow equalizing plate, enters the cabinet body after being equalized by the lower flow equalizing plate, and dissipates heat for the electrical equipment inside the cabinet. The gas is then discharged through the air outlet channel after being equalized by the upper flow equalizing plate. The lower flow equalizing plate and the upper flow equalizing plate equalize the airflow, so that the airflow can be evenly distributed in the cabinet body and rise, thereby achieving the function of heat dissipation and dust prevention at the same time.

Description

Technical Field

[0001] The invention relates to a power distribution automation cabinet, belonging to the technical field of power distribution automation equipment. Background Art

[0002] The power system comprises several key links: power generation, transmission, transformation, and distribution. Distribution directly serves electricity users. For a long time, my country has focused on power generation, neglected power supply, and ultimately failed to meet its needs. The severely underdeveloped distribution network system has resulted in high line losses, low voltage, and unreliable power supply for residential users, creating bottlenecks in the power supply system. In the early days of power grid construction, greater emphasis was placed on power generation and transmission, while distribution and power consumption were often overlooked. Consequently, in recent years, the government has invested heavily in several rounds of urban and rural power grid upgrades, renovating numerous lines, switches, and transformers to build the distribution network. As the power grid for both urban and rural areas, the stability and security of the distribution network are directly linked to the safety of power supply to countless households, holding significant economic and social significance. With the development of the social economy and the deepening of power marketization, consumers' demands for power reliability and quality are also increasing. As the power supply radius of urban power grids shrinks, distribution network distribution rooms are becoming increasingly popular. Distribution rooms are key nodes for self-healing and interaction in distribution networks. The current model for distribution room automation, which relies solely on remote monitoring, remote control, and feeder automation, fails to meet the requirements for smart distribution network automation. The smart grid is another revolution in the power industry, offering a comprehensive solution to addressing global energy, environmental, climate, economic, and sustainable development challenges. It represents the future direction of grid research and development. The distribution network, a window into electricity applications and users, is a crucial component of the smart grid and a key breakthrough in grid intelligence.

[0003] The distribution cabinet is the supporting platform of the distribution automation equipment and plays an extremely important role in the distribution automation. The conventional distribution cabinet structure usually consists of an open air inlet, an open air outlet on the top of the cabinet, and a cooling fan on the air outlet. The existing distribution cabinet cannot effectively prevent dust inside the cabinet while dissipating heat.

[0004] In the prior art, patent application CN112736725A discloses a power distribution automation cabinet comprising a U-shaped base, wherein a plurality of air cylinders are fixedly mounted on the top surface of the base, wherein pistons are provided inside the air cylinders and can move up and down within the air cylinders, wherein piston rods are fixedly mounted on the top surface of the pistons, wherein the lower ends of the piston rods extend through the upper ends of the air cylinders, wherein the upper ends of the plurality of piston rods are fixedly mounted on the power distribution automation cabinet, wherein an electrical device for the Internet of Things is placed inside the power distribution automation cabinet, wherein a motor is fixedly mounted on the upper side of one side of the power distribution automation cabinet, wherein a lead screw is fixedly mounted on the output end of the motor, wherein one end of the lead screw is fixedly connected to the other side of the power distribution cabinet via a bearing. The above technical solution solves the heat dissipation and dust removal problems raised in the background art to a certain extent, but its structure is relatively complex. Dust removal is achieved by installing a filter at the air inlet. If a filter with a relatively low density is installed at the air inlet, fine dust cannot be effectively filtered. If a filter with a relatively high density is installed, the air inlet resistance is too large, thereby making air intake inconvenient. In addition, the above technical solution is not convenient for collecting dust intercepted by the filter. Summary of the Invention

[0005] The object of the present invention is to provide a power distribution automation cabinet to solve the technical problem that the power distribution cabinet described in the background art cannot effectively perform dust prevention treatment inside the cabinet while dissipating heat.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A power distribution automation cabinet, comprising a cabinet body, a flow guide baffle, a lower flow equalizing plate, a lower flow equalizing hole, an upper flow equalizing plate, an upper flow equalizing hole, an air outlet channel, a lightweight plate, a limit block, and a dust removal mechanism. The flow guide baffle is fixedly and vertically installed inside the cabinet body, the lower flow equalizing plate is fixedly installed at the lower part of the flow guide baffle, the lower flow equalizing plate is fixedly installed at the lower part of the flow guide baffle, a plurality of evenly distributed lower flow equalizing holes are opened on the lower part of the flow guide baffle, an upper flow equalizing plate is fixedly installed at the upper part of the flow guide baffle, a plurality of upper flow equalizing holes are opened on the upper part of the flow guide baffle, an air outlet channel is fixedly installed on the upper part of the cabinet body, a lightweight plate is rotatably hingedly installed on the upper end of the air outlet channel, a limit block is fixedly installed on the rotatably hinged side of the lightweight plate on the air outlet channel, and a dust removal mechanism is fixedly installed on the upper part of the cabinet body.

[0008] The dust removal mechanism includes a dust removal chamber, a centrifugal fan, an intake pipe, an exhaust pipe, a mounting plate, a dust bag, a gravity pull ring, an air inlet, a shielding cover, a baffle, a conical bucket, and a detachable collection mechanism. The dust removal chamber is fixedly installed on the upper left side wall of the cabinet. The dust removal chamber is a box structure. A centrifugal fan is fixed on the upper part of the dust removal chamber. The air inlet end of the centrifugal fan is connected to the upper part of the dust removal chamber through the intake pipe. The air outlet end of the centrifugal fan is connected to the left side of the guide baffle in the cabinet through the exhaust pipe. A mounting plate is installed in the upper and middle part of the dust removal chamber, a dust bag is embedded in the middle of the mounting plate, a gravity pull ring is sleeved on the lower part of the dust bag, an air inlet is opened on the side wall below the upper mounting plate of the dust removal chamber, a shielding cover is installed on the outer wall of the dust removal chamber at the air inlet position, a baffle is fixedly installed on the lower surface of the mounting plate, the baffle is located between the air inlet and the dust bag, a conical bucket is fixedly installed at the lower part of the dust removal chamber, and a detachable collecting mechanism is provided on the conical bucket.

[0009] The purpose of the present invention can be further achieved by the following technical measures:

[0010] Furthermore, a base is fixedly installed at the lower end of the cabinet body, and a cabinet door is rotatably installed on the right side of the cabinet body.

[0011] Furthermore, the detachable collection mechanism includes a limiting ring, a collection bag, a locking ring, a fixing belt, and a locking bolt. A limiting ring is fixed to the lower part of the outer wall of the conical bucket, and a collection bag is mounted on the lower part of the conical bucket. A locking ring is fixedly installed on the collection bag, and a fixing belt is fixedly connected to the locking ring. The fixing belt is wrapped around the upper part of the collection bag and then inserted into the locking ring. A locking bolt is engaged and inserted into the locking ring, and the locking bolt is squeezed against the fixing belt inside the locking ring.

[0012] Furthermore, a controller and a temperature sensor are fixed in the upper part of the cabinet, the temperature sensor is electrically connected to the input end of the controller, and the control end of the controller is electrically connected to the centrifugal fan.

[0013] Furthermore, the upper flow balancing holes and the lower flow balancing holes are of the same size and number.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention provides a distribution automation cabinet, which, through structural design, can guide external cold air to the lower part of the cabinet through the guide baffle, thereby facilitating the pushing of hot air in the cabinet from bottom to top, in accordance with the laws of thermodynamics, the lower flow equalizing plate and the upper flow equalizing plate equalize the airflow, so that the airflow can be evenly distributed and rise in the cabinet.

[0015] The gas is discharged through the air outlet channel, and at the same time the air flow lifts up the lightweight board, which limits the opening of the air outlet. Compared with the existing open air outlet, it is more difficult for dust to enter. When heat dissipation is not needed, the lightweight board covers the air outlet channel to prevent dust from entering. The limit block limits the rotation angle of the lightweight board to more than 90 degrees, and then it can fall back.

[0016] During operation, the temperature inside the cabinet is sensed by the temperature sensor. When the temperature exceeds the high temperature threshold, the controller controls the centrifugal fan to work, and then the centrifugal fan works to form a negative pressure in the upper part of the dust removal chamber, and then the outside cold air enters the lower part of the dust removal chamber through the air inlet. Then the air is filtered by the dust bag and enters the left area of the guide partition in the cabinet under the action of the centrifugal fan. Then the cold air moves downward to the bottom of the lower equalizing plate, and after being equalized by the lower equalizing plate, it enters the cabinet and dissipates heat for the electrical equipment in the cabinet. Then the gas is equalized by the upper equalizing plate and discharged through the air outlet channel, thereby achieving the effect of heat dissipation and dust prevention at the same time.

[0017] The dust bag is pulled down by the gravity pull ring under the action of gravity to prevent the dust bag from collapsing under the action of air pressure.

[0018] The dust in the dust removal chamber is collected by the conical bucket and discharged into the collection bag. When the dust needs to be processed, loosen the locking bolt to loosen the fixing belt, and then the dust bag can be removed, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the power distribution automation cabinet of the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the fixing belt portion of the power distribution automation cabinet of the present invention;

[0021] Figure 3 It is a schematic diagram of the external structure of the fixing belt part of the power distribution automation cabinet described in the present invention.

[0022] In the figure, 1. cabinet body; 2. flow guide baffle; 3. lower equalizing plate; 4. lower equalizing hole; 5. upper equalizing plate; 6. upper equalizing hole; 7. air outlet channel; 8. lightweight plate; 9. limit block; 10. dust removal chamber; 11. centrifugal fan; 12. suction pipe; 13. exhaust pipe; 14. mounting plate; 15. dust bag; 16. gravity pull ring; 17. air inlet; 18. shielding cover; 19. baffle; 20. conical bucket; 21. base; 22. cabinet door; 23. limiting ring; 24. collection bag; 25. locking ring; 26. fixing belt; 27. locking bolt; 28. controller; 29. temperature sensor. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "set / mounted," "sleeved," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0026] See also Figure 1-3The present invention provides a technical solution: a power distribution automation cabinet, including a cabinet body 1, a guide baffle 2, a lower equalizing plate 3, a lower equalizing hole 4, an upper equalizing plate 5, an upper equalizing hole 6, an air outlet channel 7, a lightweight plate 8, a limit block 9, and a dust removal mechanism. The guide baffle 2 is fixedly installed vertically inside the cabinet body 1, the lower part of the guide baffle 2 is fixedly installed with the lower equalizing plate 3, the lower equalizing plate 3 is fixedly installed at the lower part of the guide baffle 2, and a plurality of evenly distributed lower equalizing holes 4 are opened on the lower equalizing plate 3, the upper part of the guide baffle 2 is fixedly installed with the upper equalizing plate 5, and a plurality of upper equalizing holes 6 are opened on the upper equalizing plate 5, an air outlet channel 7 is fixedly installed on the upper part of the cabinet body 1, and a lightweight plate 8 is rotatably hingedly installed on the upper end of the air outlet channel 7, and the lightweight plate 8 on the air outlet channel 7 is rotatably hinged and fixed on the side. A limit block 9 is fixedly installed, and a dust removal mechanism is fixedly installed on the upper part of the cabinet 1. The external cold air can be guided to the lower part of the cabinet 1 through the guide baffle 2, so as to facilitate pushing the hot air in the cabinet 1 from bottom to top, in accordance with the laws of thermodynamics. The lower equalizer plate 3 and the upper equalizer plate 5 equalize the airflow, so that the airflow can be evenly distributed in the cabinet and rise. The gas is discharged through the air outlet channel 7. At the same time, the airflow lifts the lightweight plate 8, which limits the opening degree of the air outlet channel 7. Compared with the existing open air outlet, it is more difficult for dust to enter. When heat dissipation is not required, the lightweight plate 8 covers the air outlet channel 7 under the action of gravity to prevent dust from entering. The limit block 9 limits the rotation angle of the lightweight plate 8 to exceed 90 degrees, so that the lightweight plate 8 can fall back;

[0027] The dust removal mechanism includes a dust removal chamber 10, a centrifugal fan 11, an air intake pipe 12, an exhaust pipe 13, a mounting plate 14, a dust bag 15, a gravity pull ring 16, an air inlet 17, a shielding cover 18, a baffle 19, a conical bucket 20, and a detachable collection mechanism. The dust removal chamber 10 is fixedly installed on the upper left side wall of the cabinet 1. The dust removal chamber 10 is a box structure. A centrifugal fan 11 is fixed on the upper part of the dust removal chamber 10. The air inlet end of the centrifugal fan 11 is sucked by the suction pipe. The air pipe 12 is connected to the upper part of the dust removal chamber 10, and the air outlet end of the centrifugal fan 11 is connected to the left side of the guide baffle 2 in the cabinet 1 through the exhaust pipe 13. A mounting plate 14 is installed in the upper middle part of the dust removal chamber 10, and a dust bag 15 is embedded in the middle of the mounting plate 14. A gravity pull ring 16 is sleeved on the lower part of the dust bag 15. The gravity pull ring 16 pulls the dust bag 15 downward under the action of gravity to prevent the dust bag 15 from collapsing under the action of air pressure;

[0028] An air inlet 17 is provided on the side wall below the mounting plate 14 of the dust removal chamber 10. A shielding cover 18 is installed on the outer wall of the dust removal chamber 10 at the position of the air inlet 17 to prevent foreign matter or precipitation from directly entering.

[0029] A baffle 19 is fixedly mounted on the lower surface of the mounting plate 14. The baffle 19 is located between the air inlet 17 and the dust bag 15. The baffle 19 prevents the air from directly acting on one side of the dust bag 15 through the air inlet 17, which would cause a large difference in the airflow acting on different sides of the dust bag 15.

[0030] A conical bucket 20 is fixedly installed at the lower part of the dust removal chamber 10, and a detachable collection mechanism is provided on the conical bucket 20. During operation, the temperature sensor 29 senses the temperature inside the cabinet 1. When the temperature exceeds the high temperature threshold, the controller 28 controls the centrifugal fan 11 to work, and then the centrifugal fan 11 works to form a negative pressure on the upper part of the dust removal chamber 10, and then the outside cold air enters the lower part of the dust removal chamber 10 through the air inlet 17, and then the air is filtered by the dust bag 15 and enters the left area of the guide partition 2 in the cabinet 1 under the action of the centrifugal fan 11, and then the cold air moves downward to the bottom of the lower equalizing plate 3, and after being equalized by the lower equalizing plate 3, it enters the cabinet 1 and dissipates heat to the electrical equipment in the cabinet 1, and then the gas is equalized through the upper equalizing plate 3 and discharged through the air outlet channel 7, thereby achieving the effect of heat dissipation and dust prevention at the same time.

[0031] In the present invention, a base 21 is fixedly installed at the lower end of the cabinet 1, and a cabinet door 22 is rotatably installed on the right side of the cabinet 1. By opening the cabinet, the equipment in the cabinet 1 can be observed and repaired.

[0032] In the present invention, the detachable collection mechanism includes a restriction ring 23, a collection bag 24, a locking ring 25, a fixing belt 26, and a locking bolt 27. The restriction ring 23 is fixed to the lower part of the outer wall of the conical bucket 20, and the collection bag 24 is set on the lower part of the conical bucket 20. The locking ring 25 is fixedly installed on the collection bag 24, and the fixing belt 26 is fixedly connected to the locking ring 25. The fixing belt 26 is wrapped around the upper part of the collection bag 24 and then passes through the locking ring 25. The locking bolt 27 is inserted into the locking ring 25. The locking bolt 27 is squeezed with the fixing belt 26 in the locking ring 25, and the dust in the dust removal chamber 10 is collected by the conical bucket 20 and discharged into the collection bag 24. When the dust needs to be processed, the locking bolt 27 is loosened and the fixing belt 26 is not squeezed under the action of the limiting ring 23, thereby loosening the fixing belt 26, and then the collection bag 24 can be removed, which is more convenient. The limiting ring 23 is used to limit the tightening part of the upper part of the collection bag 24 by the fixing belt 26, thereby preventing the collection bag 24 from falling off.

[0033] In the present invention, a controller 28 and a temperature sensor 29 are fixed on the upper part of the cabinet 1. The temperature sensor 29 is electrically connected to the input end of the controller 28, and the control end of the controller 28 is electrically connected to the centrifugal fan 11. The temperature signal of the temperature sensor 29 is transmitted to the controller 28. After the controller 28 determines whether the temperature is higher than the high threshold, it controls the start and stop of the centrifugal fan 11.

[0034] In the present invention, the upper flow balancing holes 6 and the lower flow balancing holes 4 are of the same size and number, so that when air flows through the upper flow balancing holes 6 and the lower flow balancing holes 4 , a relatively uniform airflow is formed in the cabinet 1 .

[0035] A person skilled in the art will connect all electrical components in this case to their corresponding power supplies via wires. Appropriate controllers 28 and temperature sensors 29 should be selected based on actual conditions to meet control requirements. For example, controller 28: LU-920, temperature sensor 29: pt100. The specific connection and control sequence should refer to the working principle, which describes the electrical connections between the electrical components in a sequential order. The detailed connection methods are well known in the art. This technical solution mainly describes the working principle and process, and does not further explain the electrical control.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution automation cabinet, comprising a cabinet body, a flow guide baffle, a lower flow equalizing plate, a lower flow equalizing hole, an upper flow equalizing plate, an upper flow equalizing hole, an air outlet channel, a lightweight plate, a limit block and a dust removal mechanism, characterized in that: A guide baffle is fixedly installed vertically inside the cabinet, a lower flow equalizing plate is fixedly installed at the lower part of the guide baffle, the lower flow equalizing plate is fixedly installed at the lower part of the guide baffle, a plurality of evenly distributed lower flow equalizing holes are opened on the lower part of the guide baffle, an upper flow equalizing plate is fixedly installed at the upper part of the guide baffle, a plurality of upper flow equalizing holes are opened on the upper part of the upper flow equalizing plate, an air outlet channel is fixedly installed on the upper part of the cabinet, a lightweight plate is rotatably hingedly installed on the upper end of the air outlet channel, a limit block is fixedly installed on the rotating hinged side of the lightweight plate on the air outlet channel, and a dust removal mechanism is fixedly installed on the upper part of the cabinet; The dust removal mechanism includes a dust removal chamber, a centrifugal fan, an intake pipe, an exhaust pipe, a mounting plate, a dust bag, a gravity pull ring, an air inlet, a shielding cover, a baffle, a conical bucket and a detachable collection mechanism. The dust removal chamber is fixedly installed on the upper left side wall of the cabinet. The dust removal chamber is a box structure. A centrifugal fan is fixed on the upper part of the dust removal chamber. The air inlet end of the centrifugal fan is connected to the upper part of the dust removal chamber through the intake pipe. The air outlet end of the centrifugal fan is connected to the left side of the guide baffle in the cabinet through the exhaust pipe. A mounting plate is installed in the middle and upper part of the dust removal chamber, a dust bag is embedded in the middle of the mounting plate, a gravity pull ring is sleeved on the lower part of the dust bag, an air inlet is opened on the side wall below the upper mounting plate of the dust removal chamber, a shield is installed on the outer wall of the air inlet of the dust removal chamber, a baffle is fixedly installed on the lower surface of the mounting plate, the baffle is located between the air inlet and the dust bag, a conical bucket is fixedly installed at the lower part of the dust removal chamber, and a detachable collecting mechanism is provided on the conical bucket; The detachable collection mechanism includes a limiting ring, a collection bag, a locking ring, a fixing belt and a locking bolt. The limiting ring is fixed to the lower part of the outer wall of the conical bucket, and the collection bag is mounted on the lower part of the conical bucket. The locking ring is fixedly installed on the collection bag, and the locking ring is fixedly connected to a fixing belt. The fixing belt is wrapped around the upper part of the collection bag and then passes through the locking ring. A locking bolt is engaged and inserted on the locking ring, and the locking bolt is squeezed by the fixing belt inside the locking ring.

2. A power distribution automation cabinet according to claim 1, characterized in that: A base (21) is fixedly mounted on the lower end of the cabinet body (1), and a cabinet door (22) is rotatably mounted on the right side of the cabinet body (1).

3. A power distribution automation cabinet according to claim 1, characterized in that: A controller (28) and a temperature sensor (29) are fixed to the upper inner portion of the cabinet (1); the temperature sensor (29) is electrically connected to the input end of the controller (28); and the control end of the controller (28) is electrically connected to the centrifugal fan (11).

4. A power distribution automation cabinet according to claim 1, characterized in that: The upper flow balancing holes (6) and the lower flow balancing holes (4) are of the same size and number.

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