Dustproof distribution box with heat dissipation function

Abstract

The utility model relates to distribution box technical field discloses a dustproof distribution box with heat dissipation function, including stainless steel shell, the inside fixed connection of stainless steel shell has insulating plate, the inside top of insulating plate is fixedly connected with the partition, the top of stainless steel shell is provided with heat dissipation mechanism, heat dissipation mechanism is used for heat dissipation to insulating plate inside, the inside bottom of insulating plate is provided with ground guide mechanism, ground guide mechanism is used for guiding electrostatic into ground. In the utility model, through the negative pressure of heat dissipation fan rotation, guide air forms circulation through the ventilation opening, ventilation groove, simultaneously, three -level filtration is carried out to grille, dustproof cotton core, filter screen, locking assembly fixes filter screen, realizes the effect that the high -efficient heat dissipation in the box, air precision filtration and convenient maintenance, avoids the heat accumulation and dust invasion to cause component failure, simultaneously, through the modularization design simplification maintenance process, ensures that distribution box is stably operated under different environments.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, and in particular to a dustproof distribution box with heat dissipation function. Background Technology

[0002] A distribution box is an electrical device used for centralized installation, distribution, and control of electricity. It is widely used in industrial production, building power distribution, and municipal facilities. Its core function is to distribute the input electrical energy through internal switches, fuses, meters, and other electrical components, and to provide overload and short-circuit protection and monitor the operating status of the circuit. Compared with traditional simple distribution devices, the distribution box achieves standardized and systematic power management through modular design. It is not only easy to install and maintain, but also effectively reduces the risk of electrical faults. It is an indispensable basic equipment in the power transmission and distribution process.

[0003] A search revealed a Chinese patent publication number: CN216720654U, which describes a power distribution box with good thermal insulation and high cooling efficiency. The box includes an outer cabinet, an inner cabinet, and heat dissipation fins. It also includes a heat exchange copper plate, an exhaust vent, and a fan. The inner cabinet is welded to one end of the outer cabinet, and heat dissipation fins are welded to the back of the inner cabinet. A heat exchange copper plate is bolted to one side of the heat dissipation fins, and a semiconductor cooling chip is located on one side of the heat exchange copper plate. A fiberglass pad is glued to the inner wall of the outer cabinet. The overall power distribution box exhibits good thermal insulation and high cooling efficiency, significantly ensuring its operational stability. While reducing the conduction of external heat to the cabinet during hot weather, it also ensures the dissipation of heat from the cabinet to the outside, making it highly practical. However, its exhaust vent and fan are directly connected to the outside, allowing airborne dust particles to enter the inner cabinet directly with the airflow. These particles adhere to the surfaces of electrical components or the gaps between the heat dissipation fins, affecting heat dissipation efficiency and potentially causing short circuits. Long-term use can lead to dust intrusion, increasing the risk of component failure and reducing equipment lifespan and operational stability. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a dustproof distribution box with heat dissipation function, which aims to improve the problem in the prior art that dust particles in the air can directly enter the inner cabinet with the airflow, which will lead to dust intrusion after long-term use, thereby increasing the risk of component failure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dustproof distribution box with heat dissipation function, comprising a stainless steel shell, an insulating plate fixedly connected inside the stainless steel shell, a partition plate fixedly connected to the top inner side of the insulating plate, a heat dissipation mechanism provided on the top of the stainless steel shell for dissipating heat inside the insulating plate, and a grounding mechanism provided on the bottom inner side of the insulating plate for conducting static electricity to the ground. The heat dissipation mechanism includes a heat insulation plate, which is fixedly connected to the top of the stainless steel shell. Cooling fans are fixedly connected to the left and right sides of the top of the stainless steel shell. Ventilation slots are opened on the left and right sides of the interior of the heat insulation plate. Ventilation openings are opened at the left and right ends of the bottom of the heat insulation plate. Two ventilation openings are respectively connected to two ventilation slots. Grilles are fixedly connected to the upper middle part of the inner side of the two ventilation openings. Dustproof cotton cores are placed inside the two ventilation openings. Filters are rotatably connected to the bottom inner side of the two ventilation openings. Locking components are provided on the outside of the two filters.

[0006] The above technical solution achieves efficient heat dissipation, precise air filtration, and convenient maintenance by using a rotating cooling fan to generate negative pressure, guiding air through vents and ventilation slots to form a circulation. At the same time, the grille, dustproof cotton core, and filter screen provide three-stage filtration, and the locking components fix the filter screen. This avoids heat accumulation and dust intrusion that could lead to component failure. Furthermore, the modular design simplifies the maintenance process and ensures stable operation of the distribution box in different environments.

[0007] As a further description of the above technical solution: The grounding mechanism includes multiple DIN rails, which are fixedly connected to the left and right ends of the inner rear side of the insulating plate. Multiple rail mounting holes are provided on the front side of each of the multiple DIN rails. A grounding copper busbar is fixedly connected to the rear end of the bottom inner side of the insulating plate. Side plates are fixedly connected to the rear ends of the left and right sides of the partition plate. The bottom ends of the two side plates are fixedly connected to the top left and right sides of the grounding copper busbar, respectively. Grounding bodies are fixedly connected to the bottom left and right sides of the two grounding copper busbars. Connecting components are provided between the multiple DIN rails and the two side plates.

[0008] The above technical solution collects static electricity from electrical components via DIN rails, conducts it to the side plate through a connection assembly consisting of fixing bolts and conductive wires, and then releases it to the ground through grounding copper busbars and grounding bodies, thus constructing a complete static electricity grounding path. This achieves full-process control of static electricity from generation to release, avoiding component failure and electric shock risks caused by static electricity accumulation, ensuring the stable operation of the electrical system in the distribution box, and improving equipment safety and operational reliability.

[0009] As a further description of the above technical solution: The locking assembly on the left end includes a retaining buckle, which is fixedly connected to the outside of the filter screen. A threaded locking pin is threadedly connected to the left side of the insulating plate, and the middle part of the threaded locking pin passes through the interior of the retaining buckle.

[0010] The above technical solution involves a fixing buckle and a threaded locking pin working together. The fixing buckle is welded to the outside of the filter screen, and the threaded locking pin passes through the fixing buckle and is screwed into the threaded hole of the insulation plate, thus securing the filter screen inside the vent. When maintenance is required, the filter screen can be removed by loosening the threaded locking pin. This achieves the effect of quick fixing and convenient disassembly of the filter screen, ensuring the high efficiency of dustproof component maintenance.

[0011] As a further description of the above technical solution: The connecting assembly at the bottom left end includes two fixing bolts and a conductive wire. The two fixing bolts are threaded into the inside of the guide rail mounting hole at the right end and the inside of the side plate, respectively. The two ends of the conductive wire are respectively sleeved on the outside of the two fixing bolts.

[0012] The above technical solution involves using fixing bolts and conductive wires. The two fixing bolts are threaded to the mounting holes of the DIN rail and the side plate, respectively. The two ends of the conductive wire are sleeved on the outside of the fixing bolts to form an electrical connection. This allows the static electricity on the DIN rail to be conducted to the side plate via the conductive wire, achieving a reliable transmission effect of static electricity from the DIN rail to the grounding system.

[0013] As a further description of the above technical solution: Insulating doors are rotatably connected to the front ends of both the left and right sides of the stainless steel shell, and insulating handles are fixedly connected to the front sides of both insulating doors.

[0014] The above technical solution involves an insulated door and an insulated handle working together. The insulated door is rotatably connected to the front left and right sides of the stainless steel shell, and the insulated handle is fixed to the front side of the insulated door. The operator can open and close the insulated door by applying force to rotate it using the insulated handle. The insulated handle avoids the risk of electric shock, thus achieving both convenience and safety in the operation and maintenance of the enclosure.

[0015] As a further description of the above technical solution: Magnetic strips are fixedly connected to adjacent sides of both insulating doors, and the two magnetic strips are magnetically connected to each other.

[0016] The above technical solution involves two magnetic strips that are fixed to adjacent sides of two insulating doors. When the insulating doors are closed, the two magnetic strips are magnetically connected to each other, forming a tight seal that prevents external dust and moisture from entering the enclosure. This also reduces electromagnetic interference, achieving both sealing protection and electromagnetic shielding for the enclosure and ensuring the operating environment of the internal components.

[0017] As a further description of the above technical solution: An insulating partition is fixedly connected to the bottom of the stainless steel shell, and the bottom of the insulating partition is in contact with the ground.

[0018] The above technical solution involves using an insulating partition fixed to the bottom of the stainless steel casing and in contact with the ground. When the distribution box leaks current, the insulating partition blocks the path of current conduction to the ground, preventing operators from being electrocuted by contact with the ground. This achieves electrical isolation between the distribution box and the ground, improving personnel safety during equipment use.

[0019] As a further description of the above technical solution: The two cooling fans rotate in opposite directions, and both cooling fans are of the same model design.

[0020] The above technical solution involves using two identical cooling fans that rotate in opposite directions. One fan draws in outside air, while the other exhausts hot air, creating a stable convection circulation within the ventilation slot. This ensures consistent airflow resistance, improves heat dissipation efficiency, and achieves efficient convection cooling within the enclosure, preventing heat buildup that could lead to overheating of electrical components.

[0021] This utility model has the following beneficial effects: 1. In this utility model, the negative pressure generated by the rotation of the cooling fan guides the air to circulate through the ventilation port and ventilation slot. At the same time, the grille, dustproof cotton core and filter screen perform three-stage filtration. The locking component fixes the filter screen, which achieves the effects of efficient heat dissipation, precise air filtration and convenient maintenance inside the box. It avoids heat accumulation and dust intrusion that may cause component failure. At the same time, the modular design simplifies the maintenance process and ensures that the power distribution box operates stably in different environments.

[0022] 2. In this utility model, static electricity from electrical components is collected by a DIN rail, conducted to the side plate via a connection assembly consisting of fixing bolts and conductive wires, and then released to the ground through a grounding copper busbar and grounding body, thus constructing a complete static electricity grounding path. This achieves full-process control of static electricity from generation to release, avoiding component failure and electric shock risks caused by static electricity accumulation, ensuring the stable operation of the electrical system in the distribution box, and improving equipment safety and operational reliability. Attached Figure Description

[0023] Figure 1 This is a front view of a dustproof distribution box with heat dissipation function proposed in this utility model; Figure 2 This is a cross-sectional view of the heat insulation plate in a dustproof distribution box with heat dissipation function proposed in this utility model. Figure 3 This is a schematic diagram of the internal structure of a dustproof distribution box with heat dissipation function proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5This is a schematic diagram of the grounding mechanism in a dustproof distribution box with heat dissipation function proposed in this utility model; Figure 6 This is a structural exploded view of the connecting components in a dustproof distribution box with heat dissipation function proposed in this utility model.

[0024] Legend: 1. Stainless steel casing; 2. Insulating plate; 3. Divider plate; 4. Heat dissipation mechanism; 401. Heat insulation plate; 402. Cooling fan; 403. Ventilation slot; 404. Ventilation opening; 405. Grille; 406. Dustproof cotton core; 407. Filter screen; 408. Locking assembly; 4081. Fixing buckle; 4082. Threaded locking pin; 5. Grounding mechanism; 501. DIN rail; 502. Rail mounting hole; 503. Grounding copper busbar; 504. Side plate; 505. Grounding body; 506. Connecting assembly; 5061. Fixing bolt; 5062. Conductive wire; 6. Insulated door; 7. Insulated handle; 8. Magnetic strip; 9. Insulated partition. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 2 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a dustproof distribution box with heat dissipation function, including a stainless steel shell 1, an insulating plate 2 fixedly connected inside the stainless steel shell 1, a partition plate 3 fixedly connected to the top inner side of the insulating plate 2, a heat dissipation mechanism 4 provided on the top of the stainless steel shell 1, the heat dissipation mechanism 4 is used to dissipate heat inside the insulating plate 2, and a grounding mechanism 5 is provided on the bottom inner side of the insulating plate 2, the grounding mechanism 5 is used to conduct static electricity to the ground. The heat dissipation mechanism 4 includes a heat insulation plate 401, which is fixedly connected to the top of the stainless steel shell 1. Cooling fans 402 are fixedly connected to the left and right sides of the top of the stainless steel shell 1. Ventilation slots 403 are provided on the left and right sides of the interior of the heat insulation plate 401. Ventilation openings 404 are provided at the left and right ends of the bottom of the heat insulation plate 401. The two ventilation openings 404 are respectively connected to the two ventilation slots 403. Grilles 405 are fixedly connected to the upper middle part of the inner side of the two ventilation openings 404. Dustproof cotton cores 406 are placed inside the two ventilation openings 404. Filters 407 are rotatably connected to the bottom inner side of the two ventilation openings 404. Locking components 408 are provided on the outside of the two filters 407. The left locking component 408 includes a fixing buckle 4081, which is fixedly connected to the outside of the filter 407. A threaded locking pin 4082 is threadedly connected to the left side of the insulating plate 2. The middle part of the threaded locking pin 4082 passes through the interior of the fixing buckle 4081. Specifically, when the cooling fan 402 on the top of the stainless steel casing 1 is powered on, the rotating blades generate negative pressure, drawing external air into the heat insulation plate 401 through the vent 404. The bottom of the vent 404 is connected to the ventilation slot 403 inside the heat insulation plate 401. The air is guided upward through the ventilation slot 403 and finally discharged from the top of the heat insulation plate 401. During this process, the air flows through the space between the insulation plate 2 and the partition plate 3, absorbing the heat generated by the operation of the electrical components. The temperature inside the enclosure is reduced through heat conduction and convection. The airflow guidance design of the cooling fan 402 and the ventilation slot 403 achieves the directional discharge of heat from the enclosure, preventing heat retention and overheating of components. The grille 405 inside the vent 404 acts as a... For primary protection, larger particles are blocked from entering, preventing them from clogging heat dissipation channels or contacting electrical components. Secondary protection is achieved by the dustproof cotton core 406, whose porous fiber structure adsorbs dust particles in the air, with a filtration accuracy of microns, effectively reducing the entry of fine dust into the enclosure. Tertiary protection is achieved by the filter screen 407 at the bottom of the vent 404, whose fine mesh further intercepts tiny particles that have passed through the dustproof cotton core 406. The filter screen 407 is fixed by the locking assembly 408. In the left-end locking assembly 408, the fixing buckle 4081 is welded to the outside of the filter screen 407, and the threaded locking pin 4082 passes through the fixing buckle 4081 and screws into the threaded hole of the insulating plate 2, fastening the filter screen 407 inside the vent 404. 5. The layered filtration and fixation of the dustproof cotton core 406, filter screen 407, and locking component 408 achieves the dual effects of air purification and structural stability, ensuring clean and dust-free airflow for heat dissipation. When the dustproof cotton core 406 or filter screen 407 accumulates excessive dust, the operator can directly loosen the threaded locking pin 4082 to release the constraint of the fixing buckle 4081, and then rotate the filter screen 407 to disengage it from the slot of the vent 404, allowing the dustproof cotton core 406 to be removed for replacement or cleaning. This modular design requires no special tools, allowing a single person to complete maintenance, shortening downtime. The quick-release structure of the locking component 408 improves the maintenance efficiency of dustproof components, ensuring the continuous and effective operation of the heat dissipation system and providing heat insulation. The plate 401 is made of high-temperature resistant material and is fixed to the top of the stainless steel shell 1. Its internal ventilation slots 403 are in direct contact with the outside air, while the bottom is connected to the inside of the box through the ventilation port 404. This not only prevents the external high temperature from being directly conducted to the box, but also allows the cooling fan 402 to drive airflow through the box to remove heat, forming a dual mechanism of heat insulation and heat dissipation. Through the physical isolation of the heat insulation plate 401 and the active cooling of the cooling fan 402, the effect of precise temperature control inside the box is achieved, which can meet the stable operation requirements under different ambient temperatures. At the same time, the optimized unity of heat dissipation efficiency and dustproof performance ensures that electrical components operate within a safe temperature range, reduces the risk of failure caused by dust, and improves the service life and reliability of the equipment.

[0027] Reference Figure 1 , Figure 5 and Figure 6 The grounding mechanism 5 includes multiple DIN rails 501, which are fixedly connected to the left and right ends of the rear side of the inner side of the insulating plate 2. Multiple rail mounting holes 502 are opened on the front side of each of the multiple DIN rails 501. A grounding copper busbar 503 is fixedly connected to the rear end of the bottom inner side of the insulating plate 2. Side plates 504 are fixedly connected to the rear ends of the left and right sides of the partition plate 3. The bottom ends of the two side plates 504 are fixedly connected to the top left and right sides of the grounding copper busbar 503, respectively. Grounding bodies 505 are fixedly connected to the bottom left and right sides of the two grounding copper busbars 503. A connecting component 506 is provided between the multiple DIN rails 501 and the two side plates 504. The bottom left end connecting component 506 includes two fixing bolts 5061 and a conductive wire 5062. The two fixing bolts 5061 are threaded into the inside of the right end rail mounting hole 502 and the inside of the side plate 504, respectively. The two ends of the conductive wire 5062 are respectively sleeved on the outside of the two fixing bolts 5061. Specifically, the grounding mechanism 5 at the bottom inner side of the insulating plate 2 is centered on the grounding copper busbar 503. Multiple components work together to achieve electrostatic conduction. First, multiple DIN rails 501 are fixed to the left and right rear ends of the insulating plate 2. The rail mounting holes 502 on their front sides are used to install electrical components. During operation, the static electricity generated by the electrical components is conducted to the DIN rails 501 through the mounting contact surface. To achieve the transmission of static electricity from the DIN rails 501 to the grounding system, taking the connecting component 506 at the bottom left end as an example, two fixing bolts 5061 are threaded into the right-end rail mounting hole 502 and the inside of the side plate 504, respectively. The conductive wires 5062 are sleeved on the outside of the fixing bolts 5061. By tightening the fixing bolts 5061, the conductive wires 5062 form a tight electrical connection with the DIN rails 501 and the side plate 504, ensuring that the DIN rails 501... Static electricity is transmitted to the side plate 504 via conductive wire 5062. Multiple connecting components 506 connect all DIN rails 501 to the side plate 504, forming a complete static electricity conduction network. The side plate 504 is fixed to the left and right rear ends of the partition plate 3, and its bottom end is connected to the top of the grounding copper busbar 503. When static electricity is conducted to the grounding copper busbar 503 through the side plate 504, the grounding copper busbar 503 uses its low resistance characteristics to quickly disperse the static electricity. The grounding bodies 505 on the left and right sides of the bottom of the grounding copper busbar 503 are directly buried in the ground, safely releasing the static electricity into the soil. Through the cooperation of the grounding copper busbar 503 and the grounding body 505, the static electricity generated by electrical components is collected from the source, conducted in the middle, and finally released. This avoids the accumulation of static electricity causing equipment failure or safety hazards, and ensures the stable operation of electrical components in the distribution box and the safety of operators.

[0028] Reference Figure 1 and Figure 2Insulating doors 6 are rotatably connected to the front ends of both the left and right sides of the stainless steel shell 1. Insulating handles 7 are fixedly connected to the front of each of the two insulating doors 6. Magnetic strips 8 are fixedly connected to the adjacent sides of each of the two insulating doors 6, and the two magnetic strips 8 are magnetically connected to each other. An insulating partition 9 is fixedly connected to the bottom of the stainless steel shell 1, and the bottom of the insulating partition 9 is in contact with the ground. The two cooling fans 402 rotate in opposite directions, and both cooling fans 402 adopt the same model design. Specifically, the insulating doors 6, which are rotatably connected to the front of the left and right sides of the stainless steel outer shell 1, allow for operation and maintenance of the interior of the enclosure through rotational opening and closing. The insulating handles 7 on the front of the insulating doors 6 facilitate operation by the operator to open or close them, while avoiding the risk of electric shock. When the insulating doors 6 are closed, the magnetic strips 8 on the adjacent sides of the two insulating doors 6 are magnetically connected to each other, forming a tight seal to prevent external dust and moisture from entering the enclosure and to reduce the impact of electromagnetic interference on the electrical components inside the enclosure. Through the cooperation of the insulating doors 6, insulating handles 7, and magnetic strips 8, the enclosure achieves both protection and convenient operation, ensuring that the internal components are protected from the influence of the external environment. The insulating partition 9, which is fixedly connected to the bottom of the stainless steel outer shell 1, is flush with the ground, insulating the distribution box from the ground. When the distribution box leaks current, the insulating partition 9 prevents the current from being conducted to the ground. To prevent operators from getting electric shock from contact with the ground, the insulating partition 9 achieves electrical isolation between the distribution box and the ground, improving equipment safety. The two cooling fans 402 in the heat dissipation mechanism 4 rotate in opposite directions and are of the same model. When the cooling fans 402 are started, one fan draws outside air into the insulating plate 2 through the vent 404, while the other fan exhausts the hot air inside the insulating plate 2. Since the two cooling fans 402 are of the same specification, the airflow resistance inside the insulating plate 2 is consistent, forming a stable convection circulation. During the airflow, the air absorbs the heat generated by the electrical components inside the box and is exhausted from the box through the ventilation slot 403. With the cooling fans 402 rotating in opposite directions, the efficient convection heat dissipation effect of the air inside the box is achieved, preventing heat accumulation that could cause the components to overheat.

[0029] Working principle: The distribution box uses a stainless steel shell 1 as its main frame. The interior is equipped with electrical components through an insulating plate 2 and a partition plate 3. The heat dissipation mechanism 4 is located on the top of the stainless steel shell 1. Its working process is as follows: When the cooling fan 402 is powered on, the cooling fans 402 on the left and right sides with opposite rotation directions start simultaneously. One fan draws in external air from the ventilation port 404 at the bottom of the heat insulation plate 401 through negative pressure, while the other fan exhausts the hot air inside the heat insulation plate 401. When the air enters the ventilation port 404, it first passes through the grille 405 in the upper middle part of the inner side to intercept larger particles of debris such as leaves and insects; then it passes through the dustproof cotton core 406, whose porous fiber structure adsorbs micron-sized dust particles.Finally, the air undergoes a third filtration through the filter 407 at the bottom inner side of the vent 404. The filter 407 is fixed by the locking assembly 408. Taking the left locking assembly 408 as an example, the fixing buckle 4081 is welded to the outside of the filter 407, and the threaded locking pin 4082 passes through the fixing buckle 4081 and is screwed into the threaded hole of the insulating plate 2 to ensure that the filter 407 is secure. The clean air that has passed through the three-stage filtration flows upward along the ventilation slot 403. When it flows through the space between the insulating plate 2 and the partition plate 3, it absorbs the heat generated by the operation of the electrical components and is finally discharged from the top of the heat insulation plate 401. The heat insulation plate 401 is made of high-temperature resistant material. Its top is in direct contact with the outside air, and its bottom is connected to the inside of the box. It not only blocks the conduction of external high temperature, but also works with the cooling fan 402 to achieve directional discharge of heat from the box. Through the coordinated operation of the cooling fan 402, ventilation slot 403, grille 405, dustproof cotton core 406, filter 407, and locking assembly 408, a dual effect of efficient heat dissipation and precise dust prevention is achieved, preventing component failures caused by overheating or dust accumulation. The grounding mechanism 5 is arranged at the bottom inner side of the insulating plate 2. Its electrostatic conduction process is as follows: multiple DIN rails 501 are fixed at the left and right ends of the rear side inside the insulating plate 2. The front rail mounting holes 502 are used to install electrical components. The static electricity generated by the component operation is conducted to the DIN rails 501 through the mounting contact surface. Taking the bottom left end connecting assembly 506 as an example, two fixing bolts 5061 are threaded into the right end rail mounting hole 502 and the inside of the side plate 504, respectively. The two ends of the conductive wire 5062 are sleeved on the fixing bolts. Externally, after tightening the fixing bolts 5061, the conductive wire 5062 establishes an electrical connection between the DIN rail 501 and the side plate 504. Multiple connecting components 506 connect all the DIN rails 501 to the side plate 504, forming an electrostatic conduction network. The side plate 504 is fixed to the left and right rear ends of the partition plate 3, and its bottom end is connected to the top of the grounding copper busbar 503. After the static electricity is conducted through the side plate 504 to the grounding copper busbar 503, it is quickly dispersed by utilizing the low resistance characteristics of the grounding copper busbar 503, and finally safely released to the ground through the grounding bodies 505 on the left and right sides of the bottom. Through the orderly cooperation of the DIN rail 501, connecting components 506, side plate 504, grounding copper busbar 503 and grounding body 505, the entire process of static electricity treatment from collection, conduction to release is realized. To eliminate the safety hazards of static electricity accumulation to equipment and personnel, the protective structure features insulated doors 6 rotatably connected to the left and right front ends of the stainless steel casing 1. These doors allow for operation and maintenance of the interior of the casing through rotational opening and closing. Insulated handles 7 facilitate force application and prevent electric shock. When the insulated doors 6 are closed, the magnetic strips 8 on adjacent sides magnetically connect to form a sealed structure, preventing dust and moisture intrusion and reducing electromagnetic interference. The insulated partition 9 at the bottom of the stainless steel casing 1 is flush with the ground. In the event of a leakage in the distribution box, the partition 9 cuts off the current conduction path to the ground, preventing electric shock to operators. Furthermore, two identical cooling fans 402, rotating in opposite directions, create a stable convection circulation while maintaining consistent airflow resistance, further improving heat dissipation efficiency.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof distribution box with heat dissipation function, comprising a stainless steel shell (1), characterized in that: An insulating plate (2) is fixedly connected inside the stainless steel shell (1). A partition plate (3) is fixedly connected to the top inner side of the insulating plate (2). A heat dissipation mechanism (4) is provided on the top of the stainless steel shell (1). The heat dissipation mechanism (4) is used to dissipate heat inside the insulating plate (2). A grounding mechanism (5) is provided on the bottom inner side of the insulating plate (2). The grounding mechanism (5) is used to conduct static electricity to the ground. The heat dissipation mechanism (4) includes a heat insulation plate (401), which is fixedly connected to the top of the stainless steel shell (1). A cooling fan (402) is fixedly connected to the left and right sides of the top of the stainless steel shell (1). Ventilation slots (403) are provided on the left and right sides of the interior of the heat insulation plate (401). Ventilation openings (404) are provided at the left and right ends of the bottom of the heat insulation plate (401). The two ventilation openings (404) are respectively connected to the two ventilation slots (403). A grille (405) is fixedly connected to the upper middle part of the inner side of the two ventilation openings (404). A dustproof cotton core (406) is placed inside the two ventilation openings (404). A filter screen (407) is rotatably connected to the bottom of the inner side of the two ventilation openings (404). A locking component (408) is provided on the outside of the two filter screens (407). The grounding mechanism (5) includes multiple DIN rails (501), which are fixedly connected to the left and right ends of the inner rear side of the insulating plate (2). Multiple rail mounting holes (502) are provided on the front side of each of the multiple DIN rails (501). A grounding copper busbar (503) is fixedly connected to the rear end of the bottom inner side of the insulating plate (2). Side plates (504) are fixedly connected to the rear ends of the left and right sides of the partition plate (3). The bottom ends of the two side plates (504) are fixedly connected to the top left and right sides of the grounding copper busbar (503). Grounding bodies (505) are fixedly connected to the bottom left and right sides of the two grounding copper busbars (503). A connecting component (506) is provided between each of the multiple DIN rails (501) and the two side plates (504).

2. A dustproof distribution box with heat dissipation function according to claim 1, characterized in that: The locking assembly (408) on the left end includes a retaining buckle (4081), which is fixedly connected to the outside of the filter screen (407). The left side of the insulating plate (2) is threadedly connected to a threaded locking pin (4082), and the middle part of the threaded locking pin (4082) penetrates the interior of the retaining buckle (4081).

3. A dustproof distribution box with heat dissipation function according to claim 1, characterized in that: The connecting assembly (506) at the bottom left end includes two fixing bolts (5061) and a conductive wire (5062). The two fixing bolts (5061) are threaded into the inside of the guide rail mounting hole (502) at the right end and the inside of the side plate (504), respectively. The two ends of the conductive wire (5062) are respectively sleeved on the outside of the two fixing bolts (5061).

4. A dustproof distribution box with heat dissipation function according to claim 1, characterized in that: The stainless steel shell (1) is rotatably connected to the front ends of both sides with insulating doors (6), and insulating handles (7) are fixedly connected to the front sides of both insulating doors (6).

5. A dustproof distribution box with heat dissipation function according to claim 4, characterized in that: Magnetic strips (8) are fixedly connected to each other on the adjacent side of the two insulating doors (6), and the two magnetic strips (8) are magnetically connected to each other.

6. A dustproof distribution box with heat dissipation function according to claim 1, characterized in that: An insulating partition (9) is fixedly connected to the bottom of the stainless steel shell (1), and the bottom of the insulating partition (9) is in contact with the ground.

7. A dustproof distribution box with heat dissipation function according to claim 1, characterized in that: The two cooling fans (402) rotate in opposite directions, and both cooling fans (402) are of the same model design.

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