An electrical power distribution box

Abstract

This utility model discloses a power distribution box for power engineering, including a base, a distribution box mounted on the upper wall of the base, an exhaust pipe embedded in the upper wall of the distribution box, a first fan embedded in the exhaust pipe, filter boxes mounted on the base and on both sides of the distribution box, and conduits connecting the two filter boxes to the distribution box. Each conduit is equipped with a first electric valve, and a second electric valve is mounted on the exhaust pipe. An assembly frame is inserted into the upper wall of each distribution box. This utility model relates to the technical field of power distribution boxes for power engineering. This device achieves active suction by three first fans, accelerating heat dissipation efficiency. During the heat dissipation process, dust is filtered and ash is absorbed, preventing dust and large amounts of moisture from entering the distribution box. It automatically senses temperature, adjusts heat dissipation in real time, and automatically dries the box to maintain moisture absorption efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power distribution box technology, specifically a power distribution box for power engineering. Background Technology

[0002] In the field of power engineering, distribution boxes, as core equipment for power distribution and control, operate outdoors or in semi-enclosed environments for extended periods. With the continuous increase in power load, components such as circuit breakers, contactors, and frequency converters inside the box continuously generate heat. If this heat cannot be dissipated in time, the internal temperature can rise to 40-60℃ or even higher. High-temperature environments not only degrade the insulation performance of components and shorten their lifespan, but can also trigger tripping, short circuits, and other faults, severely impacting the stability and safety of the power system.

[0003] Existing distribution boxes rely on a single method of heat dissipation, mainly natural ventilation or simple fan cooling, which has low heat dissipation efficiency and cannot cope with high-load conditions. Furthermore, there is a significant conflict between dust prevention and heat dissipation. In order to improve the heat dissipation effect, the ventilation openings are enlarged, which can easily lead to dust and moisture entering the box, causing dust accumulation and moisture damage to the components. There may already be existing technical solutions to solve the above-mentioned technical problems. In view of this, this case aims to provide a replacement or alternative technical solution. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a power distribution box for electrical engineering, which solves the problems of existing distribution boxes having a single heat dissipation method, relying mainly on natural ventilation or simple fan heat dissipation, resulting in low heat dissipation efficiency, inability to cope with high load conditions, and a prominent contradiction between dust prevention and heat dissipation. In order to improve the heat dissipation effect, the ventilation openings are enlarged, which easily leads to dust and moisture entering the box, causing dust accumulation and moisture damage to the components.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a power distribution box for electrical engineering, comprising a base, a distribution box mounted on the upper wall of the base, an exhaust pipe embedded in the upper wall of the distribution box, a first fan embedded in the exhaust pipe, filter boxes mounted on the base and on both sides of the distribution box, conduits connecting the two filter boxes to the distribution box, a first electric valve mounted on each conduit, a second electric valve mounted on the exhaust pipe, an assembly frame inserted into the upper wall of each distribution box, an activated carbon filter layer and an air filter layer mounted in each assembly frame, an air inlet pipe mounted on the side wall of each filter box, and a third electric valve mounted on each air inlet pipe.

[0006] Preferably, a second fan is installed in each of the air intake pipes, and a thermal resistance wire mesh is installed in each of the air intake pipes and on one side of each second fan.

[0007] Preferably, each of the filter boxes has a pressure relief pipe embedded in its upper wall, and each of the pressure relief pipes is equipped with a fourth electric valve.

[0008] Preferably, each of the assembly frames is fitted with a handle on its upper wall surface.

[0009] Preferably, the upper wall of the distribution box is equipped with a shielding frame.

[0010] Preferably, the distribution box is equipped with a temperature sensor, and each of the filter boxes is equipped with a humidity sensor.

[0011] Beneficial effects

[0012] This utility model provides a power distribution box for electrical engineering. It has the following beneficial effects: This device achieves active suction from three primary fans, accelerating heat dissipation efficiency; during the heat dissipation process, it filters dust and absorbs ash, preventing dust and large amounts of moisture from entering the distribution box; it automatically senses temperature and adjusts heat dissipation in real time; and it automatically dries the box, maintaining moisture absorption efficiency. This solves the technical problems of existing distribution boxes with their single heat dissipation method, relying heavily on natural ventilation or simple fans, resulting in low heat dissipation efficiency, inability to cope with high-load conditions, and the prominent contradiction between dust prevention and heat dissipation. Furthermore, increasing the ventilation openings to improve heat dissipation can easily lead to dust and moisture entering the box, causing dust accumulation and moisture damage to components. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a power distribution box for electrical engineering as described in this utility model.

[0014] Figure 2 This is a top view cross-sectional structural diagram of a power distribution box according to the present invention.

[0015] Figure 3 This is a side view sectional structural diagram of a power distribution box according to the present invention.

[0016] In the diagram: 1-Base; 2-Distribution box; 3-Exhaust pipe; 4-First fan; 5-Filter box; 6-Conduit; 7-Second electric valve; 8-Assembly frame; 9-Activated carbon filter layer; 10-Air filter layer; 11-Inlet pipe; 12-Third electric valve; 13-Second fan; 14-Thermocouple wire mesh; 15-Pressure relief pipe; 16-Fourth electric valve; 17-Handle; 18-Shielding frame; 19-Temperature sensor; 20-Humidity sensor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0018] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example: Refer to Figure 1-3 A power distribution box includes a base 1, a distribution box 2 mounted on the upper wall of the base 1, an exhaust pipe 3 embedded in the upper wall of the distribution box 2, a first fan 4 embedded in the exhaust pipe 3, filter boxes 5 mounted on the base 1 and on both sides of the distribution box 2, and conduits 6 connecting the two filter boxes 5 to the distribution box 2 respectively. A first electric valve 21 is mounted on each conduit 6, and a second electric valve 7 is mounted on the exhaust pipe 3. An assembly frame 8 is inserted into the upper wall of each distribution box 2, and an activated carbon filter layer 9 and an air filter layer 10 are mounted in each assembly frame 8. The side walls of each filter box 5... Each filter box 5 is equipped with an air inlet pipe 11, and each air inlet pipe 11 is equipped with a third electric valve 12; each air inlet pipe 11 is equipped with a second fan 13, and each air inlet pipe 11 and located on one side of each second fan 13 is equipped with a thermal resistance wire mesh 14; each filter box 5 has a pressure relief pipe 15 embedded in its upper wall, and each pressure relief pipe 15 is equipped with a fourth electric valve 16; each assembly frame 8 has a handle 17 mounted on its upper wall; the distribution box 2 has a shield 18 mounted on its upper wall; the distribution box 2 is equipped with a temperature sensor 19, and each filter box 5 is equipped with a humidity sensor 20.

[0021] The specific working principle is as follows:

[0022] The operator inputs commands through the programmable controller installed on it. When the temperature sensor 19 installed in the distribution box 2 detects that the temperature is higher than the set value, it sends a signal. The programmable controller receives the signal and issues a control command, opening the second electric valve 7 installed on the exhaust pipe 3, the first electric valve 21 installed on the duct 6, and the third electric valve 12 installed on the intake pipe 11. The first fan 4 in the exhaust pipe 3 starts running, drawing air out of the distribution box 2. At the same time, the second fan 13 in the intake pipe 11 starts running, drawing in outside air through the intake pipe 11 into the filter box 5. The air passes through the activated carbon filter layer 9 and the air filter layer 10 on the assembly frame 8 to absorb and filter dust and moisture. The filtered air enters the distribution box 2 through the duct 6 for air circulation, accelerating heat dissipation. When the temperature sensor 19 detects that the temperature is lower than the set value, it sends a signal. The programmable controller receives the signal and issues a control command, opening the first fan 4 and the first electric valve 21 installed on the exhaust pipe 3. The second fan 13 stops running, the first electric valve 21 and the second electric valve 7 close to seal, the humidity sensor 20 installed in the filter box 5 sends a signal when it detects that the humidity inside the box is higher than the set value, the programmable controller receives the signal and sends a control command, the fourth electric valve 16 installed on the pressure relief pipe 15 opens, the thermal resistance wire mesh 14 installed in the air inlet pipe 11 is energized and heated, the air generated by the operation of the second fan 13 blows over the heated thermal resistance wire mesh 14 to form hot air, the hot air blows towards the activated carbon filter layer 9 in the assembly frame 8 to dry the moisture it adsorbs, the gas is discharged through the pressure relief pipe 15, after drying for a certain period of time, the second fan 13 stops running, the thermal resistance wire mesh 14 stops heating, the fourth electric valve 16 and the third electric valve 12 close to prevent air from entering and maintain filtration efficiency, the staff can replace the air filter layer 10 on it by pulling the assembly frame 8 with the handle 17 at regular intervals, the shield 18 is used to prevent rainwater from backflowing.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrical power engineering distribution box comprising a base (1), characterized in that, A distribution box (2) is mounted on the upper wall of the base (1). An exhaust pipe (3) is embedded in the upper wall of the distribution box (2). A first fan (4) is embedded in the exhaust pipe (3). Filter boxes (5) are mounted on the base (1) and on both sides of the distribution box (2). A conduit (6) is connected between the two filter boxes (5) and the distribution box (2). A first electric valve (21) is mounted on each conduit (6). A second electric valve (7) is mounted on the exhaust pipe (3). An assembly frame (8) is inserted into the upper wall of each distribution box (2). An activated carbon filter layer (9) and an air filter layer (10) are mounted in each assembly frame (8). An air inlet pipe (11) is mounted on the side wall of each filter box (5). A third electric valve (12) is mounted on each air inlet pipe (11).

2. The power engineering distribution box according to claim 1, characterized in that, Each of the air intake pipes (11) is equipped with a second fan (13), and each of the air intake pipes (11) and located on one side of each second fan (13) is equipped with a thermal resistance wire mesh (14).

3. The power engineering distribution box according to claim 1, characterized in that, Each of the filter boxes (5) has a pressure relief pipe (15) embedded in its upper wall, and each of the pressure relief pipes (15) is equipped with a fourth electric valve (16).

4. The power engineering distribution box according to claim 1, characterized in that, Each of the assembly frames (8) has a handle (17) mounted on its upper wall.

5. The power engineering distribution box according to claim 1, characterized in that, The upper wall of the distribution box (2) is equipped with a shielding frame (18).

6. The power engineering distribution box according to claim 1, characterized in that, The distribution box (2) is equipped with a temperature sensor (19), and each of the filter boxes (5) is equipped with a humidity sensor (20).

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