Distribution box suitable for smart power grid

Abstract

The distribution box comprises a box body, a box door and a rainproof top, and is characterized in that the left side and the right side of the box body are each provided with a containing groove, the left inner wall and the right inner wall of each containing groove are each provided with a ventilation opening, the side wall of the box body is rotationally provided with a plurality of rainproof covers, and dustproof plates are arranged in the containing grooves in a sliding mode; and a plurality of dustproof holes are formed in the side wall of the dustproof plate. According to the invention, through the arrangement of the displacement mechanism, sunny and rainy weather can be sensed through equipment such as a rainwater sensor, the displacement mechanism is controlled to drive the rainproof cover to rotate to a horizontal state in rainy days, so that the ventilation opening can be shielded to prevent rainwater from entering the distribution box, and the rainproof cover is rotated to a vertical state in sunny days to prevent rainwater from entering the distribution box. Transverse airflow can conveniently flow through the distribution box, so that the heat dissipation and ventilation effects of the distribution box are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution boxes, and in particular to a distribution box applicable to smart grids. Background Art

[0002] With the rapid development of smart grids, higher requirements are put forward for the intelligence, reliability and safety of distribution boxes. Traditional distribution boxes have relatively single functions and are mainly responsible for power distribution and simple circuit protection.

[0003] Especially for distribution boxes used outdoors, in summer when the weather changes frequently between sunny and rainy days, if a rainproof cover is added to the ventilation side to prevent rainwater from entering the distribution box, the horizontally blowing air flow is difficult to directly enter the distribution box, thus affecting the heat dissipation and ventilation effect of the distribution box. And if the rainproof cover is removed, rainwater is easily brought into the distribution box by the horizontally blown air flow and is likely to cause a short - circuit accident inside. In view of this, the present application proposes a distribution box applicable to smart grids. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a distribution box applicable to smart grids.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A distribution box applicable to smart grids, including a box body, a box door and a rainproof top. It is characterized in that receiving grooves are opened on both the left and right sides of the box body, ventilation openings are opened on the left and right inner walls of each receiving groove, a plurality of rainproof covers are rotatably arranged on the side wall of the box body, a dust - proof plate is slidably arranged in the receiving groove, and a plurality of dust - proof holes are opened on the side wall of the dust - proof plate;

[0007] A displacement mechanism for changing the positions of the rainproof covers and the dust - proof plate is arranged in the receiving groove. The displacement mechanism rotates the rainproof covers to the vertical state and simultaneously pulls the dust - proof plate to move to the ventilation openings in sunny days, and rotates the rainproof covers to the horizontal state and pushes the dust - proof plate out of the box body in rainy days.

[0008] Preferably, a rain - collecting groove is opened on the rainproof top, and a water - collecting device is arranged at the lower end of the rainproof top. The water - collecting device can collect the rainwater flowing down from the rain - collecting groove.

[0009] Preferably, a plurality of heat - dissipation plates are arranged on the upper side of the rainproof top, and a temperature - reducing mechanism for reducing the temperature of the heat - dissipation plates is arranged on the rainproof top. The temperature - reducing mechanism can draw the rainwater in the water - collecting device in sunny days and form a water mist near the heat - dissipation plates to evaporate and absorb heat.

[0010] Preferably, two gas storage tanks are provided on the upper side of the rain-proof top. Each gas storage tank inhales air into the gas storage tank or pumps air out of the gas storage tank through a pressurization mechanism, and the pressurization mechanism is connected to a displacement mechanism through a connection mechanism.

[0011] Preferably, when the displacement mechanism performs a sunny-day action, the connection mechanism pumps the gas in the gas storage tank out. When the displacement mechanism performs a rainy-day action, the connection mechanism inhales air into the gas storage tank.

[0012] Preferably, the cooling mechanism includes a conduit, two water inlet pipes, and multiple groups of spraying mechanisms. Each group of spraying mechanisms consists of two spray pipes, and the two spray pipes of each group of spraying mechanisms are symmetrically arranged on both sides of the heat dissipation plate.

[0013] Preferably, a sunshade is rotatably provided in the rainwater collection tank, and the rotation of the sunshade is controlled by a micro servo motor.

[0014] Preferably, the two water inlet pipes are connected to a water collection device through a water riser pipe, and multiple groups of spraying mechanisms are connected to the side wall of the conduit at equal intervals along the horizontal direction of the conduit.

[0015] Preferably, the two water inlet pipes are respectively connected to both ends of the conduit.

[0016] Preferably, the displacement mechanism is connected to a rain sensor through a control circuit. The rain sensor controls the displacement mechanism to perform corresponding actions through the control circuit according to the perceived weather conditions.

[0017] The present invention has the following beneficial effects:

[0018] 1. By providing a displacement mechanism, it is possible to sense sunny and rainy weather through devices such as a rain sensor. When it rains, the displacement mechanism is controlled to drive the rain-proof cover to rotate to a horizontal state, so as to block the ventilation opening and prevent rainwater from entering the distribution box. When it is sunny, the rain-proof cover is rotated to a vertical state, which can facilitate the lateral airflow to flow through the distribution box, thereby enhancing the heat dissipation and ventilation effect of the distribution box;

[0019] 2. When the displacement mechanism performs different actions in sunny and rainy weather, it synchronously drives the dust-proof plate to move. In sunny weather, the dust-proof plate can be moved to the ventilation opening to prevent dust from being blown into the distribution box by the lateral airflow and avoid dust accumulation in the distribution box. When it rains, the dust-proof plate is moved out, and the rainwater can wash the dust-proof plate to remove the dust on the surface of the dust-proof plate and maintain the good air permeability of the dust-proof plate;

[0020] 3. By arranging a heat dissipation plate on the upper side of the rainproof top, since hot air flows upward, heat exchange can be carried out with the heat dissipation plate on the upper side, so as to cool the inside of the distribution box. At the same time, rainwater is collected by the water collection device, and the heat dissipation plate is sprayed with water mist for heat dissipation and cooling through the cooling mechanism, thereby enhancing the heat exchange effect of the heat dissipation plate and further improving the cooling effect of the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 1 is a front structural schematic diagram of a distribution box applicable to a smart grid proposed by the present invention;

[0022] Figure 2 FIG. 2 is a back structural schematic diagram of a distribution box applicable to a smart grid proposed by the present invention;

[0023] Figure 3 FIG. 3 is a top-down structural schematic diagram of the connection between the rainproof top and the water collection device in the present invention;

[0024] Figure 4 FIG. 4 is a structural schematic diagram of the section and displacement mechanism on the side of the box body in the present invention;

[0025] Figure 5 FIG. 5 is a structural schematic diagram of the connection between the internal section of a part of the box body and the rainproof cover and the dust-proof plate in the present invention;

[0026] Figure 6 is Figure 2 an enlarged schematic diagram of the structure at A in

[0027] Figure 7 FIG. 6 is a structural schematic diagram of the connection between components such as the inside of the water collection cylinder, the water rising pipe, the air spraying pipe and the air storage cylinder in the present invention;

[0028] Figure 8 is Figure 7 an enlarged schematic diagram of the structure at B in

[0029] Figure 9 FIG. 7 is a schematic diagram of the internal section of the air storage cylinder and the connection of components such as the spring, the air spraying pipe, the ejector rod and the piston plate in the present invention.

[0030] In the figures: 1 box body, 2 box door, 3 rainproof top, 4 rainproof cover, 5 dust-proof plate, 6 heat dissipation plate, 7 air storage tank, 8 conduit, 9 spray pipe, 10 water inlet pipe, 11 water rising pipe, 12 air spraying pipe, 13 water collection cylinder, 14 air hole, 15 rain collection groove, 17 support, 18 accommodation groove, 19 ventilation hole, 20 gear, 21 first rack, 22 second rack, 23 connecting rod, 24 mist pipe, 25 micropore, 26 piston plate, 27 spring, 28 electric push rod, 29 air inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Embodiment 1:

[0033] Refer to Figures 1-4 , a distribution box applicable to a smart grid, including a box body 1, a box door 2 and a rainproof top 3. Accommodating grooves 18 are provided on both the left and right sides of the box body 1. Ventilation openings 19 are provided on both the left and right inner walls of each accommodating groove 18. A plurality of rainproof covers 4 are rotatably provided on the side wall of the box body 1. A dust-proof plate 5 is slidably provided in the accommodating groove 18. A plurality of dust-proof holes are provided on the side wall of the dust-proof plate 5;

[0034] A displacement mechanism for changing the positions of the rainproof cover 4 and the dust-proof plate 5 is provided in the accommodating groove 18. When it is sunny, the displacement mechanism rotates the rainproof cover 4 to a vertical state and simultaneously pulls the dust-proof plate 5 to move to the ventilation opening 19. When it is rainy, the displacement mechanism rotates the rainproof cover 4 to a horizontal state and pushes the dust-proof plate 5 out of the box body 1.

[0035] The displacement mechanism is connected to a rain sensor through a control circuit. The rain sensor controls the displacement mechanism to perform corresponding actions through the control circuit according to the sensed weather conditions.

[0036] In this embodiment, as Figure 4 shown, the displacement mechanism can be set according to the following structure:

[0037] The displacement mechanism includes an electric push rod 28, a first rack 21, a second rack 22, a gear 20 and a connecting rod 23. The gear 20 can be connected to the rainproof cover 4 outside the box body 1 through a rotating shaft. The electric push rod 28 is arranged in the accommodating groove 18. The first rack 21 is fixedly arranged at the telescopic end of the electric push rod 28. The second rack 22 is slidably arranged inside the accommodating groove 18. The second rack 22 is fixedly connected to the dust-proof plate 5 through the connecting rod 23. The dust-proof plate 5 slidably penetrates the side wall of the box body 1. Both the first rack 21 and the second rack 22 are engaged with the gear 20. The first rack 21 is arranged vertically, and the second rack 22 and the dust-proof plate 5 are both arranged horizontally. Specifically, the rain sensor can be set to sense the sunny and rainy weather conditions. When it is sunny, the electric push rod 28 is controlled to contract through the control circuit connected to the rain sensor. When it is rainy, the electric push rod 28 is controlled to extend.

[0038] In this embodiment, when the weather is fine, the electric push rod 28 contracts and drives the first rack 21 to move downward. In this way, each gear 20 can rotate clockwise, and then the second rack 22 can be moved to the left. When the gear 20 rotates, it can drive the rain shield 4 to rotate synchronously through the rotating shaft, and the rain shield 4 can be rotated to a vertical state. At this time, as long as the shorter side of the rain shield 4 covers the ventilation opening 19, it will not overly affect the ventilation effect of the ventilation opening 19. The horizontally blowing airflow can easily pass through the ventilation opening 19 and flow through the inside of the distribution box, thereby enhancing the ventilation and heat dissipation effect inside the distribution box.

[0039] When the second rack 22 moves to the left, it will also pull the dust-proof plate 5 to the left through the connecting rod 23. In this way, the outer dust-proof plate 5 can be pulled into the receiving groove 18 and the dust-proof plate 5 is located at the ventilation opening 19 position inside the box body 1. Refer to Figure 5 As shown, when the dust-proof plate 5 is located at the ventilation opening 19 position, when the horizontal airflow blows into the box body 1, the dust will be blocked by the dust-proof plate 5 provided with a large number of dust-proof holes, and only clean air can enter the inner wall of the box body 1. In this way, dust accumulation inside the box body 1 can be avoided.

[0040] When it rains, the electric push rod 28 extends and pushes the first rack 21 to move upward. In this way, it will drive the gear 20 to rotate counterclockwise. On the one hand, it can rotate the rain shield 4 back to the horizontal position to prevent rainwater from being blown into the box body 1. On the other hand, when the gear 20 rotates counterclockwise, it can push the second rack 22 to move to the right. Then, the second rack 22 can push the dust-proof plate 5 out of the receiving groove 18 through the connecting rod 23, and finally the dust-proof plate 5 is located outside the box body 1. In this way, the dust-proof plate 5 can be exposed when it rains, and the rainwater can be used to wash and clean the dust-proof plate 5, and the dust intercepted on the outer surface of the dust-proof plate 5 can be washed clean, so that the dust-proof plate 5 maintains a good air permeability and ventilation effect.

[0041] Embodiment 2:

[0042] Compared with Embodiment 1, this embodiment also has the following further structures:

[0043] A rain collection groove 15 is opened on the rain-proof top 3, and a water collection device is provided at the lower end of the rain-proof top 3. The water collection device can collect the rainwater flowing down from the rain collection groove 15. A plurality of heat dissipation plates 6 are provided on the upper side of the rain-proof top 3, and a temperature reduction mechanism for reducing the temperature of the heat dissipation plates 6 is provided on the rain-proof top 3. The temperature reduction mechanism can draw the rainwater in the water collection device in sunny days and form a water mist near the heat dissipation plates 6 to evaporate and absorb heat. Specifically, as Figure 3 shown, the water collection device can be set as a water collection cylinder 13, which is connected to the rain collection groove 15.

[0044] The cooling mechanism includes a conduit 8, two water inlet pipes 10 and multiple groups of spray mechanisms, wherein each group of spray mechanisms consists of two nozzles 9, and the two nozzles 9 of each group of spray mechanisms are symmetrically arranged on both sides of the heat dissipation plate 6. The two water inlet pipes 10 are connected to the water collection device through a rising pipe 11, and the multiple groups of spray mechanisms are connected to the side wall of the conduit 8 at equal intervals along the horizontal direction of the conduit 8.

[0045] A rotatable sun visor 16 is installed within the rain collection trough 15. The sun visor 16 is controlled by a micro servo motor. Specifically, the micro servo motor can also be controlled by a rain sensor. On sunny days, the rain sensor, through a control circuit, causes the micro servo motor to rotate the sun visor 16, causing it to rotate horizontally. This covers the rain collection trough 15, preventing direct sunlight from evaporating the rainwater in the water collection device.

[0046] When it rains, the sun visor 16 is rotated to Figure 3 In the state shown, the sun visor 16 is open, which allows rainwater to flow smoothly through the rain collecting trough 15 into the water collecting device on the lower side.

[0047] In this embodiment, when it rains, rainwater can flow into the water collecting device on the lower side through the rain collecting trough 15 on the upper side of the rainproof roof 3 for storage. After the rain stops and the sky clears, the cooling mechanism draws rainwater from the water collecting device and forms the rainwater into a mist, which flows into the conduit 8 through the riser 11 and the water inlet pipe 10, and is finally sprayed on both sides of the heat sink 6 through the nozzles 9. Such a large area of water mist quickly exchanges heat with the high-temperature heat sink 6, and the water mist quickly evaporates and absorbs heat, thereby rapidly reducing the temperature of the heat sink 6. In this way, the heat in the distribution box can be continuously dissipated outward through the low-temperature heat sink 6, effectively enhancing the heat dissipation and cooling effect of the distribution box.

[0048] Example 3:

[0049] Compared with the second embodiment, two air tanks 7 are provided on the upper side of the rainproof roof 3 in this embodiment. Each air tank 7 draws air into the air tank 7 or pumps air out of the air tank 7 through a boosting mechanism, and the boosting mechanism is connected to the displacement mechanism through a connecting mechanism.

[0050] When the connecting mechanism is in a sunny day, the connecting mechanism pumps out the gas in the gas tank 7 . When the connecting mechanism is in a rainy day, the connecting mechanism sucks air into the gas tank 7 .

[0051] And refer to Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 and Figure 9 In this embodiment, the boosting mechanism can be implemented using the following specific structure:

[0052] The boosting mechanism includes a piston plate 26 that slides sealed within the steam storage tank 7, a spring 27, an air intake pipe 29, an air jet pipe 12, and a mist pipe 24. One end of the spring 27 is fixedly connected to the piston plate 26, while the other end is fixedly connected to the bottom of the steam storage tank 7. The mist pipe 24 is located within the water collection cylinder 13 and has a plurality of micropores 25 circumferentially arranged on its underside. Each micropore 25 has an extremely small aperture. When rainwater accumulates within the water collection cylinder 13, the surface tension of the rainwater forms a film around the micropores 25, preventing rainwater from flowing into the mist pipe 24. The air intake pipe 29 communicates with the interior of the steam storage tank 7 and is equipped with an air intake check valve, allowing only air to flow into the steam storage tank 7. The air jet pipe 12 is equipped with an air outlet check valve, restricting air flow from the steam storage tank 7 to the air jet pipe 12. Furthermore, a solenoid valve is installed within the air jet pipe 12 to control the air flow within the air jet pipe 12.

[0053] The connecting mechanism can be composed of a push rod 16, and the upper end of the push rod 16 seals and slides through the bottom of the gas tank 7, and the upper end of the push rod 16 extends into the gas tank 7, the lower end of the push rod 16 is fixedly connected to the first rack 21, and the push rod 16 is not connected to the piston plate 26.

[0054] In this embodiment, according to the content of the first embodiment, when it rains, the electric push rod 28 produces and pushes the first rack 21 to move upward, thereby also driving the push rod 16 to move upward. When the upper end of the push rod 16 contacts the piston plate 26, as the push rod 16 continues to move upward, it can push the piston plate 26 to move upward, so that air can be sucked into the air storage tank 7 through the intake pipe 29;

[0055] Reference Figure 9 When the weather is fine, the electric push rod 28 contracts and drives the first rack 21 and the push rod 16 downward in sequence according to the content of the first embodiment. When the solenoid valve in the air injection pipe 12 is in the closed state, even if the push rod 16 completes the downward movement, the piston plate 26 will not be pulled downward by the spring 27 due to the influence of the air pressure on its lower side.

[0056] When the electromagnetic valve in the air jet pipe 12 is opened, the spring 27 can pull the piston plate 26 downward and force the air under the piston plate 26 to quickly flow through the air jet pipe 12 into the mist pipe 24. Figure 7As shown, the air flow will pass through the fog tube 24 and enter the water rising pipe 11. When the air flow flows in the fog tube 24, the pressure drop in the fog tube 24 (the pressure decreases due to the fast air flow velocity) causes the pressure inside the fog tube 24 to be lower than the water pressure in the outer water collecting cylinder 13. Thus, the water in the water collecting cylinder 13 can overcome the tension of the water film at the micropores 25, and the water body in the water collecting cylinder 13 can break through the water film and enter the fog tube 24. When the water body passes through the micropores 25, fine droplets can be formed and are discharged towards the water rising pipe 11 along with the air flow in the fog tube 24. This air flow containing a large number of droplets can finally flow into the conduit 8 through the water rising pipe 11 and the water inlet pipe 10, and is finally sprayed on both sides of the heat dissipation plate 6 through each spray nozzle 9, realizing the enhanced cooling and heat dissipation effect in the second embodiment.

[0057] In addition, the solenoid valves in the air jet pipes 12 on the lower sides of the two gas storage tanks 7 can be controlled to open and close intermittently and alternately. In this way, the two gas storage tanks 7 can pump out air alternately. On the one hand, it can avoid the complete discharge of the gas in each gas storage tank 7 at one time, which can extend the heat dissipation and cooling time of this device; on the other hand, it enables the two gas storage tanks 7 to work alternately, avoiding a single gas storage tank 7 and its related components such as (piston plate 26, spring 27, etc.) from being in a high-intensity operating state continuously. This reduces the number of friction times and the load duration between components, reduces the degree of mechanical wear, extends the service life of each component, and further reduces the maintenance frequency and repair cost of the distribution box.

[0058] The alternating pumping of air will cause the water mist sprayed on both sides of the heat dissipation plate 6 to be distributed intermittently and alternately. This method avoids the situation of local overcooling or overheating of the heat dissipation plate 6 caused by continuous concentrated spraying, helps the heat to be dissipated more evenly from the heat dissipation plate, improves the uniformity and stability of the overall heat dissipation of the distribution box, and provides a more stable operating environment for the internal electrical components.

[0059] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, should be covered within the protection scope of the present invention.

Claims

1. A distribution box suitable for a smart grid, comprising a box body (1), a box door (2) and a rainproof roof (3), characterized in that: The box body (1) is provided with a receiving groove (18) on both the left and right sides, and a vent (19) is provided on the left and right inner walls of each receiving groove (18). A plurality of rainproof covers (4) are rotatably provided on the side walls of the box body (1), and a dustproof plate (5) is slidably provided in the receiving groove (18), and a plurality of dustproof holes are provided on the side walls of the dustproof plate (5); A shifting mechanism for changing the positions of the rainproof cover (4) and the dustproof plate (5) is provided in the receiving groove (18). The shifting mechanism rotates the rainproof cover (4) to a vertical position and simultaneously pulls the dustproof plate (5) to move to the vent (19) on sunny days. The shifting mechanism rotates the rainproof cover (4) to a horizontal position and pushes the dustproof plate (5) out of the box body (1) on rainy days.

2. A distribution box suitable for smart grid according to claim 1, characterized in that: A rain collecting trough (15) is provided on the rainproof roof (3), and a water collecting device is provided at the lower end of the rainproof roof (3). The water collecting device can collect rainwater flowing down from the rain collecting trough (15).

3. A distribution box suitable for smart grid according to claim 2, characterized in that: A plurality of heat dissipation plates (6) are provided on the upper side of the rainproof roof (3), and a cooling mechanism for lowering the temperature of the heat dissipation plates (6) is provided on the rainproof roof (3). The cooling mechanism can absorb rainwater from the water collection device on sunny days and form water mist near the heat dissipation plates (6) to evaporate and absorb heat.

4. A distribution box suitable for smart grid according to claim 1, characterized in that: Two air storage tanks (7) are provided on the upper side of the rainproof roof (3). Each of the air storage tanks (7) draws air into the air storage tank (7) or pumps air out of the air storage tank (7) through a boosting mechanism, and the boosting mechanism is connected to the displacement mechanism through a connecting mechanism.

5. A distribution box suitable for smart grid according to claim 4, characterized in that: When the displacement mechanism is actuated on a sunny day, the connecting mechanism pumps out the gas in the gas storage tank (7); when the displacement mechanism is actuated on a rainy day, the connecting mechanism sucks air into the gas storage tank (7).

6. A distribution box suitable for smart grid according to claim 1, characterized in that: The cooling mechanism comprises a conduit (8), two water inlet pipes (10) and multiple groups of spray mechanisms, wherein each group of spray mechanisms consists of two spray pipes (9), and the two spray pipes (9) of each group of spray mechanisms are symmetrically arranged on both sides of the heat dissipation plate (6).

7. A distribution box suitable for smart grid according to claim 1, characterized in that: A sunshade (16) is rotatably provided in the rain collecting trough (15), and the sunshade (16) is controlled to rotate by a micro servo motor.

8. The distribution box suitable for smart grid according to claim 6, characterized in that: Two water inlet pipes (10) are connected to the water collecting device through a water riser (11), and a plurality of spray mechanisms are connected to the side wall of the conduit (8) at equal intervals along the horizontal direction of the conduit (8).

9. The distribution box suitable for smart grid according to claim 6, characterized in that: Two water inlet pipes (10) are respectively connected to the two ends of the conduit (8).

10. The distribution box suitable for smart grid according to claim 1, characterized in that: The displacement mechanism is connected to a rain sensor via a control circuit, and the rain sensor controls the displacement mechanism to take corresponding actions via the control circuit according to the sensed weather conditions.

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