Micro-grid control device

Abstract

The utility model provides a micro-grid control device, which comprises a box body and a heat dissipation dustproof net, the rear wall in the box body is connected with a micro-grid controller through a mounting plate, the front side of the box body is provided with a box door, the box body is internally provided with a left air pipe and a right air pipe which are close to the top and are coaxial, and the left air pipe and the right air pipe are connected with the heat dissipation dustproof net. The deviating ends of the left air pipe and the right air pipe penetrate through the two side walls of the box body respectively, the opposite ends of the left air pipe and the right air pipe are rotationally provided with a blowing box, and the blowing box is provided with an air outlet and an air inlet with an opening facing the inner bottom of the box body. The left air pipe and the right air pipe which are communicated with the outside are arranged in the box body, then the heat dissipation dustproof nets are installed in the left air pipe and the right air pipe, ventilation, filtering and heat dissipation of the box body are facilitated, the air blower is arranged to be of a rotatable structure, the flowing direction of air in the left air pipe and the right air pipe is conveniently changed, and the heat dissipation effect is improved. Therefore, dust accumulated on the outer side of the heat dissipation dustproof net can be blown away, and the heat dissipation dustproof net has the advantage of being effectively prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of microgrids, in particular to a microgrid control device. Background Art

[0002] Some control devices in microgrids on the market are used to manage and coordinate various distributed energy sources, energy storage equipment and loads within the microgrid. At the same time, they can also achieve interconnection with the main grid or other microgrids to ensure the safe and stable operation of the microgrid. Since most microgrid control devices are installed outdoors, they are usually installed in equipment boxes to protect them. Although the equipment box can prevent rain, it needs to be equipped with heat dissipation holes and cannot be sealed. On islands and some humid areas, the humidity in the equipment box will be high. The humid environment may cause the electrical components inside the equipment to become damp or corroded, which may cause electrical failures. It may cause short circuits and leakage between wires or components on the circuit board, affecting the normal operation of the control device and posing certain safety hazards.

[0003] To this end, the invention application with publication number CN117638682A proposes a microgrid control device for photovoltaic distributed power supply, which belongs to the field of microgrid technology. The microgrid control device for photovoltaic distributed power supply includes a base, a mounting platform is fixedly connected to the top surface of the base, a box is installed on the top surface of the mounting platform, and heat dissipation ports are symmetrically opened on both sides of the box, and baffles are fixedly connected in the heat dissipation ports. The present invention sets a heat dissipation and moisture removal mechanism, and starting the driving motor will cause the moving column to perform a serpentine reciprocating motion, so that the airflow blown by the fan can be stirred in the box, the flow rate of the airflow in the box is increased, the air circulation in the box is improved, the airflow takes away the moisture in the humid air in the box, the inside of the box can maintain a dry environment, prevent the electrical components in the microgrid controller from being damp or corroded, so that the microgrid controller can operate stably, and reduce the safety hazards caused by electrical failures.

[0004] However, research has found that the above-mentioned prior art still has the following shortcomings: the overall flow direction of the airflow in the box is constant, which makes it easy for dust to accumulate on the outer side of the heat dissipation dustproof net. For this reason, the prior art introduces a cleaning brush component to solve the problem of dustproof net clogging, which has the disadvantage of complex structure and inconvenient maintenance.

[0005] To this end, the utility model provides a microgrid control device. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a microgrid control device to solve the problems raised in the above-mentioned background technology. The present invention has the advantages of wind clearing and blocking of the heat dissipation and dustproof net, the advantages of internal circulation and moisture-proof, and the advantage of more convenient replacement of the heat dissipation and dustproof net.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a microgrid control device, including a box body and a heat dissipation and dust-proof net, the rear wall of the box body is fixedly connected to the microgrid controller through a mounting plate, and a box door is arranged on the front side of the box body, and a left air duct and a right air duct close to the top and coaxial are arranged in the box body, and the divergent ends of the left air duct and the right air duct respectively penetrate the two side walls of the box body, and the opposite ends of the left air duct and the right air duct are rotatably provided with a blower box, and the blower box is provided with an air outlet and an air inlet opening toward the bottom of the box body. When the blower box rotates, the air outlet will alternately face the inner cavity of the left air duct and the right air duct, and the left air duct and the right air duct are both detachably connected with heat dissipation and dust-proof nets located at the divergent ends of the two.

[0008] Furthermore, the blower box includes a hemispherical shell, an air duct and a fan, the air outlet is opened on the spherical surface of the hemispherical shell, the fan is fixedly arranged in the hemispherical shell and opposite to the air outlet, one end of the air duct is fixedly connected to the non-spherical surface of the hemispherical shell, the air inlet is opened at the bottom of the air duct, and the opposite ends of the left air duct and the right air duct are provided with sealing annular plates that are sealed and adapted to the outer spherical surface of the hemispherical shell.

[0009] Furthermore, the tops of the left and right air ducts are welded and connected via a portal frame, a positioning shaft is welded to the top of the hemispherical shell, a control motor is fixedly connected to the top of the portal frame, and an output shaft of the control motor is fixedly connected to the positioning shaft.

[0010] Furthermore, the inner circumferential walls of the left air duct and the right air duct are fixedly connected with spiral water blocking sheets.

[0011] Furthermore, the heat dissipation and dustproof net includes an annular positioning plate and a filter net fixed in the annular positioning plate, and the annular positioning plate is clamped and connected to the left air duct and the right air duct.

[0012] Furthermore, a coaxial annular baffle is welded on the front side of the annular positioning plate, the outer diameter of the annular baffle is larger than the outer diameter of the annular positioning plate, and a resistance-increasing rubber ring is bonded to the outer peripheral wall of the annular positioning plate.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides a left air duct and a right air duct connected to the outside inside the box, and then installs a heat dissipation dustproof net inside the left air duct and the right air duct, so as to facilitate ventilation, filtration and heat dissipation of the box. By setting the blower into a rotatable structure, it is convenient to change the direction of gas flow in the left air duct and the right air duct, thereby blowing away dust accumulated on the outside of the heat dissipation dustproof net, which has the advantage of effectively preventing the heat dissipation dustproof net from being blocked.

[0015] 2. The utility model arranges the heat dissipation dustproof net and the left and right air ducts into a snap-connected structure, thereby facilitating deep cleaning of the heat dissipation dustproof net and sediment deposits in the left and right air ducts.

[0016] 3. The utility model has the advantage of effectively preventing rainwater from entering the box through the left air duct and the right air duct by arranging spiral water-blocking sheets on the inner circumferential walls of the left air duct and the right air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a microgrid control device of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure after removing the box;

[0019] Figure 3 It is a schematic diagram of the left air duct of a microgrid control device of the utility model, which is composed of the air duct, the blower box and the heat dissipation filter after explosion and expansion;

[0020] Figure 4 It is a schematic diagram of a heat dissipation and dustproof net of a microgrid control device of the utility model.

[0021] In the figure: 1. box body; 11. mounting plate; 12. box door; 2. heat dissipation and dustproof net; 21. annular positioning plate; 211. annular baffle; 22. filter; 3. microgrid controller; 4. left air duct; 5. right air duct; 6. blower box; 61. hemispherical shell; 611. positioning shaft; 62. air duct; 63. fan; 7. sealing annular plate; 8. door frame; 9. control motor; 101. spiral water blocking sheet; 102. resistance increasing rubber ring; 103. air inlet; 104. air outlet. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figures 1 to 4The utility model provides a technical solution: a microgrid control device, including a box body 1 and a heat dissipation and dustproof net 2, the rear wall of the box body 1 is fixedly connected to a microgrid controller 3 through a mounting plate 11, and a box door 12 is arranged on the front side of the box body 1, wherein the microgrid controller 3 adopts the structure of the prior art mentioned in the background technology.

[0024] In the present technical solution, a left air duct 4 and a right air duct 5 which are coaxial and close to the top are provided in the box body 1, and the divergent ends of the left air duct 4 and the right air duct 5 respectively penetrate the two side walls of the box body 1. In specific implementation, positioning holes which are welded and connected to the left air duct 4 and the right air duct 5 can be opened on both sides of the box body 1. At this time, the inside and outside of the box body 1 will be connected through the left air duct 4 and the right air duct 5.

[0025] A blower box 6 is rotatably arranged at the opposite ends of the left air duct 4 and the right air duct 5, and the blower box 6 is provided with an air outlet 104 and an air inlet 103 opening toward the bottom of the box body 1. When the blower box 6 rotates, the air outlet 104 will alternately face the inner cavities of the left air duct 4 and the right air duct 5. Therefore, when the blower box 6 blows air into the left air duct 4, the external gas will enter the right air duct 5, and then enter the blower box 6 through the air inlet 103. The blower box 6 discharges the hot air in the box body 1 through the left air duct 4. When the air inlet 103 and the inner cavity of the right air duct 5 are opposite to each other, the left air duct 4 is the air inlet duct and the right air duct 5 is the air outlet duct. That is to say, the direction of the airflow in the box body 1 can be changed by changing the direction of the air outlet 104 of the blower box 6.

[0026] The left air duct 4 and the right air duct 5 are detachably connected with a heat dissipation and dust-proof net 2 located at the divergent ends of the two. The function of the heat dissipation and dust-proof net 2 is to prevent dust in the air flow from entering the box body 1. When the direction of gas flow in the box body 1 changes, the blockage on the outside of the heat dissipation and dust-proof net 2 can be easily blown away from the inside to the outside. By periodically controlling the rotation of the blower box 6, the formation of blockage on the outside of the heat dissipation and dust-proof net 2 can be effectively avoided. Compared with the prior art, there is no need to add complicated clearing components.

[0027] Specifically, the blower box 6 includes a hemispherical shell 61, an air duct 62 and a fan 63. The air outlet 104 is opened on the spherical surface of the hemispherical shell 61. The fan 63 is fixedly arranged in the hemispherical shell 61 and opposite to the air outlet 104. One end of the air duct 62 is fixedly connected to the non-spherical surface of the hemispherical shell 61. The air inlet 103 is opened at the bottom of the air duct 62. The opposite ends of the left air duct 4 and the right air duct 5 are provided with sealing annular plates 7 that are sealed and adapted to the outer spherical surface of the hemispherical shell 61. When the spherical surface of the hemispherical shell 61 is in contact with the sealing annular plate 7, the gas discharged from the air outlet 104 can all enter the left air duct 4 or the right air duct 5, thereby increasing the strength of air flow transmission.

[0028] Furthermore, the tops of the left and right air ducts 4, 5 are welded and connected via a door frame 8, a positioning shaft 611 is welded to the top of the hemispherical shell 61, a control motor 9 is fixedly connected to the top of the door frame 8, an output shaft of the control motor 9 is fixedly connected to the positioning shaft 611, and the control motor 9 provides a driving force for the rotation of the positioning shaft 611, thereby controlling the rotation of the hemispherical shell 61.

[0029] In this embodiment, the inner walls of the left air duct 4 and the right air duct 5 are fixedly connected with a spiral water-blocking sheet 101. When there is wind and rain outside, rainwater entering the left air duct 4 and the right air duct 5 will be blocked by the spiral water-blocking sheet 101, slowing down the speed of rainwater flowing in the left air duct 4 and the right air duct 5. Then, under the blocking of the sealing annular plate 7, rainwater can be effectively prevented from entering the box body 1, which has the advantage of rainproof.

[0030] In this embodiment, the heat dissipation and dustproof net 2 includes an annular positioning plate 21 and a filter net 22 fixed in the annular positioning plate 21. The filter net 22 serves to filter dust in the airflow. The annular positioning plate 21 is snap-connected with the left air duct 4 and the right air duct 5. The purpose of this arrangement is to facilitate the assembly, disassembly and cleaning of the heat dissipation and dustproof net 2, and to facilitate the cleaning of the deposits (such as mud and sand) on the inner walls of the left air duct 4 and the right air duct 5.

[0031] Furthermore, a coaxial annular baffle 211 is welded on the front side of the annular positioning plate 21, and the outer diameter of the annular baffle 211 is larger than the outer diameter of the annular positioning plate 21. A resistance-increasing rubber ring 102 is bonded to the outer peripheral wall of the annular positioning plate 21, and the annular positioning plate 21 is connected to the inner walls of the mouths of the left air duct 4 and the right air duct 5 by interference fit through the resistance-increasing rubber ring 102.

[0032] When using the device, first control the positioning shaft 611 to rotate so that the air outlet 104 and the inner cavity of the left air duct 4 are opposite, and then start the fan 63. The start of the fan 63 will generate attraction in the duct 62. At this time, the external air will enter through the heat dissipation dustproof net 2 in the right air duct 5, and then enter the lower part of the box 1. The hot air in the box 1 will enter the duct 62 through the air inlet 103. Under the transmission of the fan 63, the hot air will be sent to the left air duct 4, and finally discharged outward through the heat dissipation dustproof net 2 in the left air duct 4, so as to realize ventilation and heat dissipation in the box 1. At this time, if dust is accumulated on the outside of the heat dissipation dustproof net 2 in the left air duct 4, the airflow will directly blow away the dust. When the hemispherical shell 61 is controlled to rotate 180°, the dust accumulated on the outside of the heat dissipation dustproof net 2 in the right air duct 5 can be blown away. Therefore, the device can avoid the formation of accumulation and blockage on the outside of the heat dissipation dustproof net 2 by controlling the blowing direction of the blower box 6.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A microgrid control device, comprising a box (1) and a heat dissipation and dustproof net (2), wherein a microgrid controller (3) is fixedly connected to the rear wall of the box (1) via a mounting plate (11), and a box door (12) is arranged on the front side of the box (1), characterized in that: The box body (1) is provided with a left air duct (4) and a right air duct (5) which are coaxial and close to the top. The divergent ends of the left air duct (4) and the right air duct (5) respectively penetrate the two side walls of the box body (1). The opposite ends of the left air duct (4) and the right air duct (5) are rotatably provided with a blower box (6). The blower box (6) is provided with an air outlet (104) and an air inlet (103) opening toward the bottom of the box body (1). When the blower box (6) rotates, the air outlet (104) will alternately face the inner cavity of the left air duct (4) and the right air duct (5). The left air duct (4) and the right air duct (5) are both detachably connected with a heat dissipation and dustproof net (2) located at the divergent ends of the two.

2. A microgrid control device according to claim 1, characterized in that: The blower box (6) comprises a hemispherical shell (61), an air duct (62) and a fan (63); the air outlet (104) is provided on the spherical surface of the hemispherical shell (61); the fan (63) is fixedly arranged in the hemispherical shell (61) and opposite to the air outlet (104); one end of the air duct (62) is fixedly connected to the non-spherical surface of the hemispherical shell (61); the air inlet (103) is provided at the bottom of the air duct (62); and the opposite ends of the left air duct (4) and the right air duct (5) are both provided with sealing annular plates (7) that are sealed and adapted to the outer spherical surface of the hemispherical shell (61).

3. A microgrid control device according to claim 2, characterized in that: The tops of the left air duct (4) and the right air duct (5) are welded together via a door frame (8), a positioning shaft (611) is welded to the top of the hemispherical shell (61), a control motor (9) is fixedly connected to the top of the door frame (8), and an output shaft of the control motor (9) is fixedly connected to the positioning shaft (611).

4. A microgrid control device according to claim 2, characterized in that: The inner circumferential walls of the left air duct (4) and the right air duct (5) are both fixedly connected with a spiral water blocking sheet (101).

5. A microgrid control device according to claim 1, characterized in that: The heat dissipation and dustproof net (2) comprises an annular positioning plate (21) and a filter net (22) fixed in the annular positioning plate (21); the annular positioning plate (21) is clamped and connected to the left air duct (4) and the right air duct (5).

6. A microgrid control device according to claim 5, characterized in that: A coaxial annular baffle (211) is welded to the front side of the annular positioning plate (21), the outer diameter of the annular baffle (211) is larger than the outer diameter of the annular positioning plate (21), and a resistance-increasing rubber ring (102) is bonded to the outer peripheral wall of the annular positioning plate (21).

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