Switch cabinet for low-voltage power supply control

Abstract

The invention discloses a switch cabinet for low-voltage power supply control, and relates to the technical field of switch cabinets, the switch cabinet comprises a cabinet body, the top end of the cabinet body is connected with a cooling fan, the front surface of the cabinet body is provided with a sealing door, and the cabinet body is internally provided with a component module; an isolation assembly enters the cabinet body and comprises an isolation block, the isolation block is arranged in the cabinet body, the isolation block penetrates through the side face of the cabinet body and extends into the cabinet body, the isolation block and the cabinet body are in sliding connection, and containing bins are fixedly connected to the two sides of the cabinet body. When a fault occurs in a certain area, diffusion of dangerous substances such as electric arcs and high-temperature gas can be effectively prevented, the fault range is limited, the influence on the whole switch cabinet and an electric power system is reduced, and the power failure range and the equipment damage degree are reduced. And the maintenance difficulty and cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of switch cabinets, and specifically to a switch cabinet for low-voltage power supply control. Background Art

[0002] In the power system, as a key device for distributing electric energy, controlling, and protecting electrical equipment, the performance and safety of low-voltage switch cabinets are of crucial importance.

[0003] In this regard, the patent of CN218919734U discloses a low-voltage switch cabinet that is convenient for maintenance, including a cabinet body. A cabinet door is hinged on the cabinet body. The outer surface of the cabinet body is in contact with a rear door. A connecting rod is fixedly connected to the rear door. The connecting rod is slidably connected to the cabinet body. A guiding strip is fixedly connected to the connecting rod. The guiding strip is slidably connected to the inner surface of the cabinet body. A ventilation duct is fixedly connected to the rear door, and a fan is arranged in the ventilation duct. By providing an openable rear door on the back of the original cabinet body in the present utility model, the terminal block is installed on the rear door, and the rear door is locked through a hanging ring with a spring and a hook. In this way, in the later stage, only by opening the rear door can the terminal block be pulled out together. Compared with the enclosed space inside the cabinet, it is more conducive to the inspection and maintenance of the terminal block. Moreover, a maintenance registration book rack is welded on the original cabinet door, and a record book for maintenance registration can be placed.

[0004] Nowadays, with the growth of power demand and the increasing complexity of electrical equipment, higher requirements are put forward for the performance and reliability of low-voltage switch cabinets. The defects of switch cabinets without compartment separation are becoming increasingly obvious in terms of heat dissipation, electromagnetic interference, space utilization, and maintenance convenience. In terms of heat dissipation, due to the concentration of components, heat is difficult to dissipate, which will cause the equipment temperature to be too high, reducing the component life and system stability; in terms of electromagnetic interference, the electromagnetic signals generated by each component interfere with each other, affecting the normal operation of the equipment; in terms of space utilization, the lack of separation leads to a chaotic layout, making it difficult to expand and upgrade; during maintenance, it is difficult to find faults, and the maintenance process is likely to affect other normally operating components.

[0005] In view of the above problems, a switch cabinet for low-voltage power supply control is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a switch cabinet for low-voltage power supply control, which solves the problem that the components in the switch cabinet in the background art are not divided.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A switch cabinet for low-voltage power supply control, including a cabinet body, a heat dissipation fan is connected to the top of the cabinet body, a sealed door is installed on the front of the cabinet body, and a component module is arranged inside the cabinet body.

[0008] Inside the cabinet body, there is an isolation component. The isolation component includes an isolation block. The isolation block is arranged inside the cabinet body. The isolation block penetrates through the side of the cabinet body and extends into the interior of the cabinet body. The isolation block is slidably connected to the cabinet body. On both sides of the cabinet body, there are fixedly connected accommodation bins. In the middle of the cabinet body, there is an embedded central heat dissipation tube. On the side of the central heat dissipation tube, there is a partition board. On one side of the partition board, there is a guiding board. On the surface of the partition board, there are conduction grooves. On both sides of the central heat dissipation tube, there are air duct grooves. The conduction grooves are connected to the air duct grooves;

[0009] The partition board is embedded inside the cabinet body. The partition board is used to partition the interior of the cabinet body. The cabinet body is longitudinally partitioned into two left and right spaces by the partition board. The isolation block is set in an L shape. The isolation block is used to horizontally partition the cabinet body into two spaces.

[0010] Preferably, the guiding board is inclined on the surface of the partition board. The guiding board is used to cover the partition boards opened on both sides of the central heat dissipation tube. The flowing air flows through the guiding board and through the inside of the conduction grooves and the air duct grooves, and finally is discharged through the central heat dissipation tube.

[0011] Preferably, on one side of the back of the isolation block, there is a circulation component. The circulation component includes first heat dissipation fins. The first heat dissipation fins are evenly distributed on one side of the back of the isolation block. The first heat dissipation fins are horizontally distributed on one side of the back of the isolation block.

[0012] Preferably, on the inner wall of the cabinet body, there is a fixedly connected back board. On the back board, there are connected second heat dissipation fins. The second heat dissipation fins are horizontally distributed on the surface of the back board.

[0013] Preferably, the component module is installed on the back board. On one side of the back of the component module, it is attached to the second heat dissipation fins. Inside the second heat dissipation fins, there is an embedded connection pipe. On the surface of the connection pipe, there are air inlets.

[0014] Preferably, the first heat dissipation fins and the second heat dissipation fins are respectively attached to the front and back of the component module. The first heat dissipation fins and the second heat dissipation fins are used to transfer the heat generated by the operation of the component module.

[0015] Preferably, the second heat dissipation fins and the first heat dissipation fins are connected to each other through the connection pipe. The inside of the connection pipe is hollow. One side of the connection pipe away from the second heat dissipation fins is embedded into the inside of the first heat dissipation fins. The connection pipe is slidably connected to the first heat dissipation fins.

[0016] Preferably, on one side of the connection pipe, there is a cover strip. Between the second heat dissipation fins, there is a channel for guiding the flow. The cover strip covers the channel for guiding the flow.

[0017] Preferably, corrugated strips are embedded inside the first heat dissipation fins. The corrugated strips are in a corrugated shape. The corrugated strips are filled inside the first heat dissipation fins. Inside the first heat dissipation fins, there is a central installation bin. Inside the central installation bin, there is an embedded support piece.

[0018] Preferably, the support piece is arranged at the middle position of the central installation bin. The support piece is in a bent shape and is embedded inside the central installation bin. The support piece is used to support the middle position of the central installation bin and provide an upward acting force.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] A switch cabinet for low-voltage power supply control provided by the present invention, in terms of safety, through the partition design of the L-shaped isolation block and the partition board, the interior of the cabinet body is divided into different spaces. When a fault occurs in a certain area, it can effectively prevent the diffusion of dangerous substances such as electric arcs and high-temperature gases, limit the scope of the fault, reduce the impact on the entire switch cabinet and the power system, and reduce the power outage range and the degree of equipment damage. In terms of reliability, the constructed heat dissipation air duct and the circulation component play a key role. It improves the maintenance efficiency and reduces the maintenance difficulty and cost. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the structure of the cabinet body and the isolation block of the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the cabinet body and the central heat dissipation pipe of the present invention;

[0024] Figure 4 is a schematic diagram of the structure of the guiding plate and the partition board of the present invention;

[0025] Figure 5 is an exploded view of the central heat dissipation pipe and the guiding plate of the present invention;

[0026] Figure 6 is a schematic diagram of the structure of the first heat dissipation fin and the connecting pipe of the present invention;

[0027] Figure 7 is a schematic diagram of the structure of the connecting pipe and the cover strip of the present invention;

[0028] Figure 8 is a schematic diagram of the structure of the corrugated strip and the central installation bin of the present invention.

[0029] In the figure: 11, cabinet body; 12, heat dissipation fan; 13, sealing door; 14, component module; 2, isolation component; 21, isolation block; 22, accommodation bin; 23, central heat dissipation pipe; 24, guiding plate; 25, partition board; 26, conduction groove; 27, air duct groove; 3, circulation component; 31, first heat dissipation fin; 32, back plate; 33, second heat dissipation fin; 34, connecting pipe; 35, air inlet; 36, cover strip; 37, corrugated strip; 38, central installation bin; 39, support piece. Specific embodiments

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] To further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings.

[0032] Combined with Figures 1-8 , a switch cabinet for low-voltage power supply control of the present invention includes a cabinet body 11, a heat dissipation fan 12 is connected to the top of the cabinet body 11, a sealing door 13 is installed on the front surface of the cabinet body 11, and a component module 14 is arranged inside the cabinet body 11;

[0033] In the application of the low-voltage switch cabinet, the component module 14 is protected by the cabinet body 11, and in addition, the inside of the cabinet body 11 is sealed by the sealing door 13. On the one hand, excessive changes in the internal environment can be avoided, and on the other hand, accidental contact by personnel can be prevented.

[0034] An isolation component 2 enters the inside of the cabinet body 11. The isolation component 2 includes an isolation block 21. The isolation block 21 is arranged inside the cabinet body 11. The isolation block 21 penetrates through the side surface of the cabinet body 11 and extends into the inside of the cabinet body 11. The isolation block 21 is slidably connected to the cabinet body 11. Accommodation bins 22 are fixedly connected to both sides of the cabinet body 11. A central heat dissipation pipe 23 is embedded in the middle of the cabinet body 11. A partition plate 25 is connected to the side surface of the central heat dissipation pipe 23. A guiding plate 24 is connected to one side of the partition plate 25. The guiding plate 24 is obliquely arranged on the surface of the partition plate 25. The guiding plate 24 is used to cover the partition plate 25 opened on both sides of the central heat dissipation pipe 23. The flowing air flows through the inside of the conduction groove 26 and the air duct groove 27 through the guiding plate 24, and finally is discharged through the central heat dissipation pipe 23. A conduction groove 26 is opened on the surface of the partition plate 25, and air duct grooves 27 are opened on both sides of the central heat dissipation pipe 23. The conduction groove 26 and the air duct grooves 27 are communicated with each other;

[0035] The partition plate 25 is embedded in the cabinet body 11. The partition plate 25 is used to partition the inside of the cabinet body 11. The cabinet body 11 is longitudinally partitioned into left and right two spaces by the partition plate 25. The isolation block 21 is arranged in an L shape. The isolation block 21 is used to horizontally partition the cabinet body 11 into two spaces.

[0036] In a low-voltage switchgear cabinet, compartment separation is one of the core designs. Its main purpose is to improve the safety, reliability, and maintainability of the equipment by physically isolating different functional areas. Although the compartment separation design in low-voltage switchgear cabinets has significant advantages in terms of safety, reliability, and maintainability, there are also some defects and challenges. After isolating the components, the compartment separation may hinder air flow, resulting in local heat accumulation. Especially during high-load operation, the equipment temperature rises. To solve this problem, a heat dissipation air duct is constructed between the isolation block 21 and the cabinet body 11. Through the formation of the air duct, good heat dissipation efficiency can still be provided during the isolation stage. The specific operation is as follows:

[0037] First, after installing the component module 14 inside the cabinet body 11, in the normal state of the cabinet body 11, the isolation block 21 and the partition board 25 do not fit together. That is to say, there is an air duct for air circulation between the isolation block 21 and the partition board 25. In this way, when cold air is input into the inside of the cabinet body 11, the cold air will flow through the gap between the isolation block 21 and the partition board 25 to the inside of the guiding plate 24. Since the flowing path is blocked by the guiding plate 24, the guiding plate 24 then plays a guiding role, thus pushing the internal hot air to flow into the inside of the central heat dissipation pipe 23 through the partition board 25 and the conduction groove 26. In this way, the air circulation inside is realized. When the cold air is blown in through the fan on the back of the cabinet body 11, the hot air is discharged through the central heat dissipation pipe 23, ensuring the internal heat dissipation. In addition, the isolation block 21 also plays a role in isolating the components. Through the L-shaped design of the isolation block 21, the inside of the cabinet body 11 is divided into four spaces. When the isolation block 21 is completely drawn out from the inside of the cabinet body 11, then two spaces will be formed inside the cabinet body 11. According to the different types of components, they can be reasonably allocated, which can enhance the management and maintenance of the components. In addition, when a fault occurs, this block can be separated to avoid affecting other components. That is to say, when a short circuit, overload or other faults occur in a certain functional unit or area, generating electric arcs, high-temperature gases or conductive media, the separation of the isolation block 21 can prevent these dangerous substances from spreading to other compartments, limiting the fault to a specific compartment and avoiding triggering faults in the entire switchgear cabinet or even the power system, reducing the power outage range and the degree of equipment damage.

[0038] To further optimize the air duct of the isolation block 21, a circulation component 3 is set up to improve the overall separation effect and solve the problem of poor flow performance caused by separation. The specific operation is as follows:

[0039] On the back side of the isolation block 21, a circulation component 3 is connected. The circulation component 3 includes a first heat sink 31. The first heat sinks 31 are evenly distributed on the back side of the isolation block 21 and horizontally distributed on the back side of the isolation block 21. A back plate 32 is fixedly connected to the inner wall of the cabinet body 11. A second heat sink 33 is connected to the back plate 32. The second heat sinks 33 are horizontally distributed on the surface of the back plate 32. The component module 14 is installed on the back plate 32. The back side of the component module 14 is attached to the second heat sink 33. A connecting pipe 34 is embedded in the second heat sink 33. An air inlet 35 is provided on the surface of the connecting pipe 34. The first heat sink 31 and the second heat sink 33 are respectively attached to the front and back of the component module 14. The first heat sink 31 and the second heat sink 33 are used to transfer the heat generated by the operation of the component module 14. The second heat sink 33 and the first heat sink 31 are connected to each other through the connecting pipe 34. The inside of the connecting pipe 34 is hollow. One side of the connecting pipe 34 away from the second heat sink 33 is embedded into the first heat sink 31. The connecting pipe 34 and the first heat sink 31 are slidably connected. A cover strip 36 is connected to one side surface of the connecting pipe 34. A channel for guiding the flow is provided between the second heat sinks 33. The cover strip 36 covers the channel for guiding the flow.

[0040] First, in terms of strengthening the maintenance of the component module 14, the protection of the component module 14 is enhanced through the first heat sink 31 on the back side of the isolation block 21 and the second heat sink 33 provided on the back plate 32. The first heat sink 31 and the second heat sink 33 are flexibly arranged. On the one hand, they can be used to stabilize the component module 14. On the other hand, due to the high degree of fitting, the heat conduction effect is better. Through the fitting of the first heat sink 31 and the second heat sink 33, the heat generated on the component module 14 can be transferred to the first heat sink 31 and the second heat sink 33, and through the horizontal distribution of the first heat sink 31 and the second heat sink 33, the hot air flow is guided to the gap between the isolation block 21 and the partition plate 25, and finally discharged through the central heat dissipation pipe 23. In addition, cold air is introduced through the air inlet 35, and the cooling air is respectively transported to the inside of the first heat sink 31 and the inside of the second heat sink 33 through the connecting pipe 34. At this time, under the guidance of the first heat sink 31 and the second heat sink 33, the cold air passes through the component module 14 and takes away the heat on the component module 14. This not only helps to extend the service life of the component module 14, reduce the risk of failures caused by overheating, but also ensures that the component module 14 operates efficiently under stable temperature conditions, improving the performance and reliability of the entire low-voltage switchgear.

[0041] The interior of the first heat sink 31 is embedded with corrugated strips 37. The corrugated strips 37 are corrugated in shape and are filled inside the first heat sink 31. A central installation chamber 38 is formed inside the first heat sink 31. A support piece 39 is embedded inside the central installation chamber 38. The support piece 39 is disposed at the middle position of the central installation chamber 38 and is bent and embedded inside the central installation chamber 38. The support piece 39 is used to support the middle position of the central installation chamber 38 and provide an upward acting force.

[0042] In addition, in order to increase the degree of fitting between the first heat sink 31 and the second heat sink 33 and the component module 14, the first heat sink 31 and the second heat sink 33 are closely fitted. After fitting, the acting force squeezes the corrugated strips 37, causing the corrugated strips 37 to deform. And the support piece 39 provides a supporting force for the deformation of the corrugated strips 37. The first heat sink 31 and the second heat sink 33 are closely fitted, and the acting force squeezes the corrugated strips 37 to deform them. At the same time, the support piece 39 provides a supporting force for the deformation of the corrugated strips 37. This design can maximize the degree of fitting between the first heat sink 31, the second heat sink 33 and the component module 14. The close fitting can not only improve the heat conduction effect, but also prevent interference between the component module 14 and the air duct of the first heat sink 31, ensuring the stability of the air flow in the air duct and the effectiveness of heat dissipation. The support piece 39 is bent and embedded inside the central installation chamber 38 and supports the middle position of the central installation chamber 38, providing an upward acting force. This enables the entire structure of the first heat sink 31 to remain stable when the corrugated strips 37 are squeezed and deformed, without excessive deformation or damage due to external extrusion, ensuring the reliability and stability of the heat dissipation and fitting structure during long-term use.

[0043] The air flow circulation is realized through the air duct between the isolation block 21 and the partition plate 25, and the internal heat dissipation is ensured in cooperation with the central heat pipe 23; in the circulation assembly 3, the first heat sink 31 and the second heat sink 33 which are flexibly arranged are closely attached to the component module 14, efficiently conducting heat. At the same time, cold air is introduced through the air inlet 35 to take away the heat, ensuring that the component module 14 operates at a stable temperature, improving the reliability of the equipment and the service life of the components. In terms of maintainability, the reasonable space division is convenient for allocation according to the component type, which is beneficial to the management and maintenance of the components.

[0044] It should be noted that in this text, relational terms such as first and second are only used 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 "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A switch cabinet for low voltage power supply control, characterized in that: It comprises a cabinet, a cooling fan is connected to the top of the cabinet, a sealing door is installed on the front of the cabinet, and a component module is arranged inside the cabinet; An isolation assembly is provided inside the cabinet, and the isolation assembly includes an isolation block. An isolation block is provided inside the cabinet, and the isolation block extends through the side of the cabinet to the inside of the cabinet. The isolation block and the cabinet are slidably connected, and accommodating bins are fixedly connected to both sides of the cabinet. A central heat dissipation pipe is embedded in the middle of the cabinet, and a partition plate is connected to the side of the central heat dissipation pipe, and a guide plate is connected to one side of the partition plate. A conducting groove is provided on the surface of the partition plate, and air duct grooves are provided on both sides of the central heat dissipation pipe, and the conducting groove and the air duct groove are connected; The partition plate is embedded in the interior of the cabinet, and is used to partition the interior of the cabinet. The cabinet is longitudinally divided into two left and right spaces by the partition plate. The isolation block is arranged in an L shape, and is used to partition the cabinet transversely into two spaces.

2. The switch cabinet for low-voltage power supply control according to claim 1, characterized in that: The guide plate is tiltedly arranged on the surface of the partition plate, and is used to cover the partition plates opened on both sides of the central heat dissipation tube. The flowing air flows through the guide plate, passes through the inside of the conduction groove and the air duct groove, and is finally discharged through the central heat dissipation tube.

3. The switch cabinet for low-voltage power supply control according to claim 1, characterized in that: A circulation component is connected to the back side of the isolation block. The circulation component includes a first heat sink. The first heat sink is evenly distributed on the back side of the isolation block and is horizontally distributed on the back side of the isolation block.

4. The switch cabinet for low-voltage power supply control according to claim 3 is characterized in that: A back plate is fixedly connected to the inner wall of the cabinet, and a second heat sink is connected to the back plate. The second heat sink is laterally distributed on the surface of the back plate.

5. The switch cabinet for low-voltage power supply control according to claim 1, characterized in that: The component module is mounted on the back plate, and one side of the back of the component module is attached to the second heat sink. A connecting tube is embedded in the interior of the second heat sink, and an air inlet is opened on the surface of the connecting tube.

6. The switch cabinet for low-voltage power supply control according to claim 3, characterized in that: The first heat sink and the second heat sink are respectively attached to the front and back of the component module, and the first heat sink and the second heat sink are used to transfer heat generated by the component module during operation.

7. The switch cabinet for low-voltage power supply control according to claim 6, characterized in that: The second heat sink and the first heat sink are connected to each other via a connecting tube. The interior of the connecting tube is hollow. The side of the connecting tube away from the second heat sink is embedded in the interior of the first heat sink. The connecting tube and the first heat sink are slidably connected.

8. The switch cabinet for low-voltage power supply control according to claim 7, characterized in that: A cover strip is connected to one side of the connecting pipe, a channel for guiding flow is arranged between the second heat sinks, and the cover strip covers the channel for guiding flow.

9. The switch cabinet for low-voltage power supply control according to claim 3, characterized in that: A corrugated bar is embedded in the first heat sink, the corrugated bar is provided with a corrugated shape, the corrugated bar is filled in the first heat sink, a central installation compartment is opened in the first heat sink, and a support sheet is embedded in the central installation compartment.

10. The switch cabinet for low-voltage power supply control according to claim 9, characterized in that: The support sheet is arranged at the middle position of the central installation bin. The support sheet is embedded in the interior of the central installation bin in a curved shape. The support sheet is used to support the middle position of the central installation bin and provide an upward force.

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