Electrical complete switch equipment applied to power distribution system

Abstract

The invention discloses an electrical complete switch device applied to a power distribution system, which relates to the technical field of switch devices and comprises a cabinet body and a moving assembly. The cabinet body is internally provided with partition assemblies which are uniformly distributed, the partition assemblies are internally provided with fixing assemblies, the front sides of the partition assemblies are provided with pulling assemblies, the pulling assemblies are connected with the fixing assemblies, and the upper side of the interior of the cabinet body is provided with a temperature sensor; the moving assembly comprises a fixed box, moving blocks, a threaded rod, a limiting rod and a motor, a strip-shaped opening is formed in the rear side of the cabinet body, the fixed box is fixed in the strip-shaped opening, the two corresponding moving blocks are arranged in the fixed box, a threaded hole is formed in the middle of the moving block on the left side, the threaded rod is in threaded connection with the interior of the threaded hole, and the limiting rod is in threaded connection with the threaded rod. And the threaded rod is rotationally connected to the interior of the fixed box, and a modular separation design, an intelligent temperature control system and a forced ventilation and heat dissipation mechanism are achieved.

Description

Technical Field

[0001] This invention relates to the field of switchgear technology, specifically to an electrical switchgear assembly used in power distribution systems. Background Technology

[0002] Electrical switchgear in power distribution systems is a critical infrastructure component of power transmission and distribution networks, commonly referred to as switch cabinets or distribution units. As an integrated electrical equipment unit, it undertakes the core task of receiving, distributing, and controlling electrical energy in power plants, substations, industrial and mining enterprises, and various buildings. Internally, it integrates various electrical components such as circuit breakers, disconnectors, load switches, fuses, instrument transformers, protective relays, and measuring instruments, connected into a complete system via busbars and cables. Its main functions include flexible power distribution during normal operation, rapid interruption of fault current to protect downstream equipment in the event of circuit anomalies such as overload or short circuit, and monitoring of grid operating parameters. Therefore, the reliability, safety, and intelligence level of this type of equipment directly affect the safe and stable operation and power supply quality of the entire power distribution network.

[0003] However, existing traditional electrical switchgear has gradually revealed some inherent shortcomings in long-term application practice. In terms of structural design, the internal space layout of many devices is relatively fixed, making it difficult to adjust the installation positions of components. The lack of effective modular design results in insufficient flexibility when expanding system capacity or changing circuits, often requiring large-scale power outages or even replacing the entire cabinet, leading to long construction cycles and high costs. Regarding heat dissipation, with the increase in equipment capacity and density, traditional natural convection cooling methods sometimes fail to meet the demand for efficient heat dissipation, potentially causing excessively high local temperatures inside the cabinet, affecting component lifespan or even causing malfunctions. Simultaneously, inadequate protection against the intrusion of foreign objects such as dust and moisture can also threaten the insulation performance and safe operation of internal components. Therefore, we propose an electrical switchgear for use in power distribution systems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide an electrical switchgear for use in power distribution systems, which has a modular partition design, an intelligent temperature control system and a forced ventilation and heat dissipation mechanism, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an electrical switchgear assembly for use in a power distribution system, comprising a cabinet and a moving component; Cabinet: The interior is equipped with evenly distributed partition components, the partition components are equipped with fixing components, the front of the partition components are equipped with a pull component, the pull component is connected to the fixing component, and a temperature sensor is installed on the upper side of the interior of the cabinet. The moving assembly comprises a fixed box, moving blocks, threaded rods, limit rods, and a motor. A strip-shaped opening is located on the rear side of the cabinet, inside which the fixed box is fixed. Inside the fixed box are two corresponding moving blocks. The left moving block has a threaded hole in its center, through which a threaded rod is threadedly connected. The threaded rod is rotatably connected inside the fixed box. The right moving block has a limit hole in its center, through which a limit rod is slidably connected. The limit rod is fixed inside the fixed box. A motor is mounted on the lower side of the fixed box, and its output shaft is fixed to the lower end of the threaded rod. An air intake assembly is installed inside the fixed box, and an air injection assembly is mounted on the rear side of the fixed box, connected to the air intake assembly. The cabinet provides robust protection and structural support. The moving assembly, driven by the motor, allows for flexible adjustment of the equipment position via the threaded rod and moving blocks, facilitating movement or positioning within the power distribution system. A temperature sensor monitors the internal temperature in real time and is linked to the PLC controller to ensure timely alarm or adjustment when the equipment overheats, improving the equipment's intelligence and operational safety. Wherein: the input end of the motor is electrically connected to the output end of an external PLC controller, and the temperature sensor is bidirectionally electrically connected to the external PLC controller.

[0006] Furthermore, the air intake assembly includes an air intake box, a pressure sensor, and a connecting hose. The air intake box is located inside the fixed box and is fixed to the front of the two moving blocks. Pressure sensors are installed on both the upper and lower sides of the air intake box. A connecting hose is fixed inside the air inlet located on the rear side of the air intake box. A sliding hole is opened at the upper rear side of the fixed box, and the connecting hose is slidably connected inside the sliding hole. The pressure sensor is bidirectionally electrically connected to an external PLC controller. The connecting hose can flexibly extend and retract with the moving assembly to avoid damage during equipment movement. Pressure data is analyzed in real time by the PLC controller, which helps to prevent damage to the air intake box, maintain air circulation inside the equipment, and extend the life of components.

[0007] Furthermore, the air injection assembly includes a support plate, a support ring, a fixed barrel, an air intake fan, and a filter screen. Two corresponding support plates are fixed to the lower rear end of the fixed box, and support rings are fixed to the rear sides of the two support plates. A fixed barrel is fixed inside the support rings. The rear end of the connecting hose is fixed inside the air outlet located at the front end of the fixed barrel. An air intake fan is installed inside the fixed barrel, and a filter screen is fixed to the rear end inside the fixed barrel. The input end of the air intake fan is electrically connected to the output end of an external PLC controller. The air injection assembly forces in external air through the air intake fan, and the filter screen removes dust and impurities, preventing contaminants from entering the equipment. The support plate and support ring provide stable support, ensuring that the fixed barrel does not shake during operation. This design enhances the cooling efficiency of the equipment, is suitable for high-load power distribution environments, and reduces the risk of failure due to overheating.

[0008] Furthermore, the partition assembly includes guide grooves, partition plates, and wiring grooves. Guide grooves are evenly distributed on both the left and right sides of the cabinet interior. Evenly distributed partition plates are installed inside the cabinet, with their left and right ends slidably connected to the interiors of corresponding guide grooves. Evenly distributed wiring grooves are provided on the rear side of the cabinet. The partition assembly achieves modular space division through guide grooves and partition plates, facilitating the installation of different types of electrical components. The wiring grooves provide an orderly channel for cables, reducing wiring clutter. This design improves the scalability and ease of maintenance of the equipment, allowing for rapid adjustments to the internal layout according to power distribution needs.

[0009] Furthermore, the fixing assembly includes a slide bar, a locking rod, and a spring. A sliding cavity is provided in the middle of the partition plate. Two corresponding slide bars are slidably connected inside the sliding cavity. Two corresponding locking rods are fixed to the sides of the slide bars. Two corresponding guide holes are provided on both the left and right sides inside the sliding cavity. The locking rods are slidably connected inside the corresponding guide holes. Two corresponding slots are provided inside the guide groove. The locking rods are engaged inside the corresponding slots. Springs are evenly distributed on the end face of the slide bar away from the two locking rods. The fixing assembly uses the elastic force of the springs to push the slide bar and locking rods into the slots of the guide groove, ensuring that the partition plate is firmly fixed and preventing displacement when the equipment vibrates or moves.

[0010] Furthermore, the pulling assembly includes a fixed frame, a connecting rope, a pull rope, and a pull frame. The fixed frame is fixed inside the sliding cavity in the middle of the partition plate. All the springs located inside the sliding cavity are fixed to the left and right sides of the fixed frame. A connecting hole is provided in the middle of the fixed frame, and a connecting rope is slidably connected inside the connecting hole. The two ends of the connecting rope are fixed to the sides of two sliders. A pull hole is provided on the front side of the fixed frame, and a pull rope is slidably connected inside the pull hole. The pull rope is fixed in the middle of the connecting rope. A groove is provided on the front side of the partition plate, and a pull frame is provided inside the groove. The front end of the pull rope is fixed to the rear side of the pull frame. The pulling assembly provides a quick release mechanism through the pull frame and pull rope. The operator only needs to pull the pull frame to simultaneously retract the two side levers via the connecting rope, simplifying the disassembly process of the partition plate.

[0011] Furthermore, an air inlet is provided on the lower side of the cabinet, and a protective mesh is fixed inside the air inlet. The rear end of the lower side of the cabinet has evenly distributed wiring holes. The protective mesh is installed on the air inlet on the lower side of the cabinet to effectively prevent insects, dust and other foreign objects from entering and keep the inside of the equipment clean.

[0012] Furthermore, four corresponding support legs are fixed to the lower side of the cabinet, and a chassis is fixed to the lower side of the support legs. The chassis can also be equipped with wheels or anchors to facilitate the movement or fixation of the equipment. This design improves the adaptability and service life of the equipment and is suitable for different installation sites.

[0013] Furthermore, a baffle is hinged to the front of the cabinet, and a lock is installed on the front of the baffle. The lock is connected to the cabinet. The baffle and the lock provide front protection and safety locking functions to prevent unauthorized personnel from accessing the internal high-voltage components. The hinged design facilitates quick opening for maintenance, while the lock ensures that the equipment is sealed during operation, meets electrical safety standards, and reduces the risk of accidental electric shock.

[0014] Furthermore, an observation port is provided on the front side of the baffle, and a transparent plate is fixed inside the observation port. The transparent plate allows the operator to directly observe the internal status of the equipment through the baffle, and a preliminary inspection can be carried out without opening the cabinet door. This improves the convenience of monitoring, reduces dust intrusion and equipment interference caused by frequent door opening, and is suitable for power distribution scenarios that require high-frequency inspection.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This complete set of electrical switchgear applied to power distribution systems has the following advantages: 1. The beneficial effects of this invention lie in its superior spatial flexibility and modular design. Through the synergistic effect of the moving components and the partition components, rapid adjustment and optimization of the internal layout of the equipment are achieved. The motor-driven threaded rod and moving block in the moving components enable the equipment to be precisely positioned or moved according to power distribution requirements, while the partition plates are slidably connected through guide grooves. Together with the fixing components and the pulling components, they allow operators to easily install or remove electrical components, greatly improving the adaptability of the equipment when the system is expanded or the circuit is changed, reducing the time and cost of power outage modifications, and enhancing the overall operation and maintenance efficiency. 2. The combination of the air intake component and the air injection component ensures forced airflow and filtration inside the cabinet. The air intake fan draws in clean air through the filter screen, effectively reducing the temperature inside the cabinet and preventing local overheating from damaging the components. 3. The baffle and lock design provides robust physical protection against unauthorized access to high-voltage components, while the transparent panel allows for non-intrusive monitoring through the observation port, reducing the risk of dust intrusion from frequent door openings. This user-friendly design, combined with a quick maintenance mechanism such as the pull-out frame operation of the component, simplifies the release process of the partition, thereby improving the convenience of inspection and user experience while ensuring electrical safety standards. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 This is a schematic diagram of the structure of the mobile component of the present invention; Figure 3 This is a schematic diagram of the intake assembly structure of the present invention; Figure 4 This is a schematic diagram of the separator component structure of the present invention; Figure 5 This is a schematic diagram of the fixing component structure of the present invention; Figure 6 This is a schematic diagram of the lower structure of the present invention.

[0017] In the diagram: 1 Cabinet, 2 Moving Component, 21 Fixed Box, 22 Moving Block, 23 Threaded Rod, 24 Limiting Rod, 25 Motor, 3 Air Intake Component, 31 Air Intake Box, 32 Pressure Sensor, 33 Connecting Hose, 4 Air Injection Component, 41 Support Plate, 42 Support Ring, 43 Fixed Bucket, 44 Air Intake Fan, 45 Filter Screen, 5 Divider Component, 51 Guide Groove, 52 Divider Plate, 53 Wiring Groove, 6 Fixed Component, 61 Sliding Strip, 62 Clamping Rod, 63 Spring, 7 Pulling Component, 71 Fixed Frame, 72 Connecting Rope, 73 Pull Rope, 74 Pull Frame, 8 Protective Frame, 9 Wiring Hole, 10 Support Leg, 11 Chassis, 12 Baffle, 13 Lock, 14 Transparent Plate, 15 Temperature Sensor. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-6 This embodiment provides a technical solution: an electrical switchgear for use in a power distribution system, comprising a cabinet 1 and a moving component 2; Cabinet 1: An evenly distributed partition assembly 5 is installed inside. A fixing assembly 6 is installed inside the partition assembly 5. A pull assembly 7 is installed on the front side of the partition assembly 5, and the pull assembly 7 is connected to the fixing assembly 6. A temperature sensor 15 is installed on the upper side inside the cabinet 1. The partition assembly 5 includes guide grooves 51, partition plates 52, and wiring grooves 53. Evenly distributed guide grooves 51 are provided on both the left and right sides inside the cabinet 1. Evenly distributed partition plates 52 are provided inside the cabinet 1, with their left and right ends slidably connected to the corresponding guide grooves 51. Evenly distributed wiring grooves 53 are provided on the rear side of the cabinet 1. The fixing assembly 6 includes... The partition plate 52 has a sliding cavity in the middle, with two corresponding sliding bars 61 slidably connected inside. Two corresponding locking rods 62 are fixed to the sides of the sliding bars 61. Two corresponding guide holes are opened on both the left and right sides inside the sliding cavity, and the locking rods 62 are slidably connected inside the corresponding guide holes. Two corresponding slots are opened inside the guide slots, and the locking rods 62 are engaged inside the corresponding slots. Evenly distributed springs 63 are fixed to the end face of the sliding bar 61 away from the two locking rods 62. The pulling assembly 7 includes a fixed frame 71, a connecting rope 72, a pull rope 73, and a pull frame 74. The partition plate 52 has a sliding cavity in the middle. A fixed frame 71 is fixed inside the sliding cavity. All the springs 63 located inside the sliding cavity are fixed to the left and right sides of the fixed frame 71. A connecting hole is opened in the middle of the fixed frame 71, and a connecting rope 72 is slidably connected inside the connecting hole. The two ends of the connecting rope 72 are fixed to the sides of the two slide bars 61 respectively. A pull hole is opened on the front side of the fixed frame 71, and a pull rope 73 is slidably connected inside the pull hole. The pull rope 73 is fixed in the middle of the connecting rope 72. A groove is provided on the front side of the partition plate 52, and a pull frame 74 is provided inside the groove. The front end of the pull rope 73 is fixed to the rear side of the pull frame 74. The pulling assembly 7 provides a quick pull through the pull frame 74 and the pull rope 73. The release mechanism allows operators to simply pull the pull frame 74 to simultaneously retract the two side levers 62 via the connecting rope 72, simplifying the disassembly process of the partition plate 52. The fixing component 6 uses the elastic force of the spring 63 to push the slide bar 61 and lever 62 into the slots of the guide groove 51, ensuring that the partition plate 52 is firmly fixed and preventing displacement during equipment vibration or movement. The partition component 5 achieves modular space division through the guide groove 51 and the partition plate 52, facilitating the installation of different types of electrical components. The wiring groove 53 provides an orderly channel for cables, reducing wiring chaos. This design improves the scalability and ease of maintenance of the equipment, allowing for rapid adjustment of the internal layout according to power distribution needs. Mobile component 2 includes a fixed box 21, a moving block 22, a threaded rod 23, a limiting rod 24, and a motor 25. A strip-shaped opening is provided on the rear side of the cabinet 1, and the fixed box 21 is fixed inside the opening. Two corresponding moving blocks 22 are installed inside the fixed box 21. A threaded hole is provided in the middle of the left moving block 22, and a threaded rod 23 is threadedly connected inside the threaded hole. The threaded rod 23 is rotatably connected inside the fixed box 21. A limiting hole is provided in the middle of the right moving block 22, and a limiting rod 24 is slidably connected inside the limiting hole. The limiting rod 24 is fixed inside the fixed box 21. A motor 25 is installed on the lower side of the fixed box 21, and the output shaft of the motor 25 is fixed to the lower end of the threaded rod 23. The fixed box 21 contains... The air intake assembly 3 has an air injection assembly 4 installed on the rear side of the fixed box 21. The air injection assembly 4 is connected to the air intake assembly 3. The air intake assembly 3 includes an air intake box 31, a pressure sensor 32, and a connecting hose 33. The air intake box 31 is located inside the fixed box 21 and is fixed to the front side of the two moving blocks 22. Pressure sensors 32 are installed on both the upper and lower sides of the air intake box 31. The connecting hose 33 is fixed inside the air inlet located on the rear side of the air intake box 31. A sliding hole is opened at the upper rear side of the fixed box 21, and the connecting hose 33 is slidably connected inside the sliding hole. The pressure sensor 32 is bidirectionally electrically connected to an external PLC controller. The air injection assembly 4 includes a support plate 41, a support ring 42, a fixed barrel 43, an air intake fan 44, and a filter screen 4. 5. Two corresponding support plates 41 are fixed to the lower rear side of the fixed box 21. Support rings 42 are fixed to the rear sides of the two support plates 41. A fixed bucket 43 is fixed inside the support rings 42. The rear end of the connecting hose 33 is fixed inside the air outlet at the front end of the fixed bucket 43. An air intake fan 44 is installed inside the fixed bucket 43. A filter screen 45 is fixed to the rear end inside the fixed bucket 43. The input end of the air intake fan 44 is electrically connected to the output end of an external PLC controller. The air injection assembly 4 forces in external air through the air intake fan 44. The filter screen 45 removes dust and impurities, preventing contaminants from entering the equipment. The support plates 41 and support rings 42 provide stable support, ensuring that the fixed bucket 43 does not shake during operation. This design enhances... The equipment's cooling efficiency is suitable for high-load power distribution environments, reducing the risk of failure due to overheating. The connecting hose 33 extends and retracts flexibly with the moving component 2, preventing damage during equipment movement. Pressure data is analyzed in real time by the PLC controller, helping to prevent damage to the air intake box 31, maintaining internal air circulation, and extending component life. The cabinet 1 provides robust protection and structural support. The moving component 2 achieves flexible adjustment of the equipment position through the motor 25 driving the threaded rod 23 and the moving block 22, facilitating movement or positioning within the power distribution system. The temperature sensor 15 monitors the internal temperature in real time and is linked with the PLC controller to ensure timely alarm or adjustment when the equipment overheats, improving the equipment's intelligence level and operational safety. Among them: the input terminal of motor 25 is electrically connected to the output terminal of an external PLC controller, and the temperature sensor 15 is bidirectionally electrically connected to the external PLC controller.

[0020] Among them: an air inlet is provided on the lower side of the cabinet 1, and a protective mesh plate 8 is fixed inside the air inlet. The rear end of the lower side of the cabinet 1 has evenly distributed wiring holes 9. The protective mesh plate 8 is installed on the lower air inlet of the cabinet 1 to effectively block insects, dust and other foreign objects from entering and keep the inside of the equipment clean.

[0021] Among them, four corresponding support legs 10 are fixed on the lower side of the cabinet 1, and a chassis 11 is fixed on the lower side of the support legs 10. The chassis 11 can also be equipped with wheels or anchors to facilitate the movement or fixation of the equipment. This design improves the adaptability and service life of the equipment and is suitable for different installation sites.

[0022] Specifically: A baffle 12 is hinged to the front of the cabinet 1, and a lock head 13 is installed on the front of the baffle 12. The lock head 13 is connected to the cabinet 1. The baffle 12 and the lock head 13 provide front protection and safety locking functions to prevent unauthorized personnel from accessing the internal high-voltage components. The hinged design facilitates quick opening for maintenance, while the lock head 13 ensures that the equipment is closed during operation, meets electrical safety standards, and reduces the risk of accidental electric shock.

[0023] The front side of the baffle 12 has an observation port, and a transparent plate 14 is fixed inside the observation port. The transparent plate 14 allows the operator to directly observe the internal status of the equipment through the baffle 12 and perform a preliminary inspection without opening the cabinet door. This improves the convenience of monitoring, reduces dust intrusion and equipment interference caused by frequent door opening, and is suitable for power distribution scenarios that require high-frequency inspection.

[0024] The working principle of the electrical switchgear for power distribution systems provided by this invention is as follows: When the equipment starts, the temperature sensor 15 inside the cabinet 1 monitors the ambient temperature in real time and feeds the data back to the external PLC controller. When the temperature is abnormal, the controller can trigger an early warning mechanism. The moving component 2 drives the threaded rod 23 to rotate through the motor 25, causing the left moving block 22 to move along the threaded rod 23, while the right moving block 22 is constrained by the limiting rod 24 and can only slide, thereby driving the overall displacement of the air intake box 31. At the same time, the air intake fan 44 of the air injection component 4 starts under the command of the PLC controller, drawing in air from the outside. After the filter screen 45 filters impurities, the clean air is delivered to the air intake box 31 of the air intake component 3 through the connecting hose 33. The pressure sensors 32 on the upper and lower sides of the air intake box 31 continuously monitor the position of the air intake box 31 and feed the data back to the PLC controller to prevent the air intake box 31 from impacting. The fixed box 21 allows airflow to enter the cabinet 1 from the air inlet box 31, forming a circulating ventilation system with the air inlet of the lower protective mesh panel 8, effectively reducing the temperature of components. The partition assembly 5 guides the partition plate 52 to slide through the guide groove 51, realizing modular division of the internal space, facilitating the installation and wiring of electrical components. The wiring groove 53 and wiring hole 9 provide an orderly channel for cables. The fixing assembly 6 uses the elastic force of the spring 63 to push the slide bar 61 and the locking rod 62 into the slot of the guide groove 51, firmly fixing the partition plate 52 and preventing displacement during equipment operation. When the layout needs to be adjusted, the operator can pull the pull rope 73 by pulling the pull frame 74 of the pull assembly 7, and simultaneously retract the locking rods 62 on both sides through the connecting rope 72, quickly releasing the partition plate 52 for reconfiguration. The baffle 12 and lock head 13 on the front side of the cabinet 1 ensure safe closure, the transparent panel 14 allows external observation of the internal status, and the support legs 10 and chassis 11 provide stable support.

[0025] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The motor 25, intake fan 44, pressure sensor 32, and temperature sensor 15 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the motor 25 and intake fan 44 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An electrical switchgear assembly for use in a power distribution system, characterized in that: Includes cabinet (1) and moving components (2); Cabinet (1): The interior is equipped with evenly distributed partition components (5), the interior of which is equipped with fixing components (6), the front side of which is equipped with a pulling component (7), the pulling component (7) is connected to the fixing component (6), and the upper side of the interior of the cabinet (1) is equipped with a temperature sensor (15). The moving component (2) includes a fixed box (21), a moving block (22), a threaded rod (23), a limiting rod (24), and a motor (25). A strip-shaped opening is provided on the rear side of the cabinet (1), and the fixed box (21) is fixed inside the strip-shaped opening. Two corresponding moving blocks (22) are provided inside the fixed box (21). A threaded hole is provided in the middle of the left moving block (22), and a threaded rod (23) is threadedly connected inside the threaded hole. The threaded rod (23) is rotatably connected inside the fixed box (21). A limiting hole is provided in the middle of the moving block (22) on the right side. A limiting rod (24) is slidably connected inside the limiting hole. The limiting rod (24) is fixed inside the fixed box (21). A motor (25) is installed on the lower side of the fixed box (21). The output shaft of the motor (25) is fixed to the lower end of the threaded rod (23). An air intake assembly (3) is installed inside the fixed box (21). An air injection assembly (4) is installed on the rear side of the fixed box (21). The air injection assembly (4) is connected to the air intake assembly (3). Wherein: the input end of the motor (25) is electrically connected to the output end of the external PLC controller, and the temperature sensor (15) is bidirectionally electrically connected to the external PLC controller.

2. The electrical switchgear for a power distribution system according to claim 1, characterized in that: The air intake assembly (3) includes an air intake box (31), a pressure sensor (32), and a connecting hose (33). The air intake box (31) is installed inside the fixed box (21). The air intake box (31) is fixed to the front side of two moving blocks (22). Pressure sensors (32) are installed on both the upper and lower sides of the air intake box (31). The connecting hose (33) is fixed inside the air intake port on the rear side of the air intake box (31). A sliding hole is opened at the upper end of the rear side of the fixed box (21). The connecting hose (33) is slidably connected inside the sliding hole. The pressure sensor (32) is bidirectionally electrically connected to an external PLC controller.

3. The electrical switchgear for use in a power distribution system according to claim 2, characterized in that: The air injection assembly (4) includes a support plate (41), a support ring (42), a fixed barrel (43), an air intake fan (44), and a filter screen (45). Two corresponding support plates (41) are fixed at the lower rear side of the fixed box (21). A support ring (42) is fixed at the rear side of the two support plates (41). A fixed barrel (43) is fixed inside the support ring (42). The rear end of the connecting hose (33) is fixed inside the air outlet set at the front end of the fixed barrel (43). An air intake fan (44) is installed inside the fixed barrel (43). A filter screen (45) is fixed at the rear end inside the fixed barrel (43). The input end of the air intake fan (44) is electrically connected to the output end of an external PLC controller.

4. The electrical switchgear for use in a power distribution system according to claim 1, characterized in that: The partition component (5) includes a guide groove (51), a partition plate (52) and a wiring groove (53). The left and right sides of the cabinet (1) are provided with evenly distributed guide grooves (51). The cabinet (1) is provided with evenly distributed partition plates (52). The left and right ends of the partition plates (52) are slidably connected to the interior of the corresponding two guide grooves (51). The rear side of the cabinet (1) is provided with evenly distributed wiring grooves (53).

5. An electrical switchgear assembly for a power distribution system according to claim 4, characterized in that: The fixing component (6) includes a slide bar (61), a locking rod (62), and a spring (63). A sliding cavity is provided in the middle of the partition plate (52). Two corresponding slide bars (61) are slidably connected inside the sliding cavity. Two corresponding locking rods (62) are fixed on the side of the slide bar (61). Two corresponding guide holes are provided on the left and right sides inside the sliding cavity. The locking rods (62) are slidably connected inside the corresponding guide holes. Two corresponding slots are provided inside the guide slots. The locking rods (62) are engaged inside the corresponding slots. Springs (63) are evenly distributed on the end face of the slide bar (61) away from the two locking rods (62).

6. An electrical switchgear assembly for a power distribution system according to claim 5, characterized in that: The pulling assembly (7) includes a fixed frame (71), a connecting rope (72), a pull rope (73), and a pull frame (74). The fixed frame (71) is fixed inside the sliding cavity opened in the middle of the partition plate (52). All the springs (63) located inside the sliding cavity are fixed on the left and right sides of the fixed frame (71). A connecting hole is opened in the middle of the fixed frame (71). The connecting rope (72) is slidably connected inside the connecting hole. The two ends of the connecting rope (72) are fixed on the sides of the two slide bars (61). A pull hole is opened on the front side of the fixed frame (71). The pull rope (73) is slidably connected inside the pull hole. The pull rope (73) is fixed in the middle of the connecting rope (72). A groove is provided on the front side of the partition plate (52). The pull frame (74) is provided inside the groove. The front end of the pull rope (73) is fixed on the rear side of the pull frame (74).

7. An electrical switchgear assembly for a power distribution system according to claim 1, characterized in that: An air inlet is provided on the lower side of the cabinet (1), and a protective mesh plate (8) is fixed inside the air inlet. A uniformly distributed wiring hole (9) is provided at the rear end of the lower side of the cabinet (1).

8. An electrical switchgear assembly for a power distribution system according to claim 1, characterized in that: The cabinet (1) has four corresponding support legs (10) fixed on its lower side, and the support legs (10) have a base (11) fixed on their lower sides.

9. An electrical switchgear assembly for a power distribution system according to claim 1, characterized in that: A baffle (12) is hinged to the front side of the cabinet (1), and a lock (13) is installed on the front side of the baffle (12). The lock (13) is connected to the cabinet (1).

10. An electrical switchgear assembly for a power distribution system according to claim 9, characterized in that: An observation port is provided on the front side of the baffle (12), and a transparent plate (14) is fixed inside the observation port.

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