Power cabinet for a static var generator

Abstract

This utility model relates to the field of electrical equipment technology and discloses a power cabinet for a static var generator, including a power cabinet body. Inspection doors are movably connected to both the front and rear sides of the power cabinet body. A cooling fan is fixedly installed at the top of the power cabinet body and is electrically connected to the main controller inside the power cabinet body via a connecting cable. Multiple equipment racks are fixedly installed inside the power cabinet body. A ventilation mechanism is also fixedly installed at the rear of the power cabinet body. The ventilation mechanism includes an air inlet pipe and an air guide pipe, which are fixedly connected to each other. A filter box is movably installed inside the air inlet pipe. The ventilation mechanism, composed of the air inlet pipe, air guide pipe, filter box, and filter plates, allows external air to enter the air guide pipe and the power cabinet body in conjunction with the cooling fan through multiple staggered filter plates within the filter box, and then exit through the air inlet on the outside of the air guide pipe.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a power cabinet for a static var generator. Background Technology

[0002] In modern industrial production and power systems, power cabinets are key equipment and are widely used in various electrical control and power conversion scenarios. They typically integrate a large number of electronic components and power devices, which generate a lot of heat during operation. If heat cannot be dissipated in a timely and effective manner, the temperature inside the power cabinet will continue to rise. This will not only seriously affect the performance and lifespan of electronic components, but may even cause equipment failure, leading to production interruption and huge economic losses.

[0003] Therefore, most existing power cabinets are equipped with cooling fans to achieve the cooling function of the power cabinet. That is, the cooling of the power cabinet mainly relies on the ventilation device. Traditional power cabinet ventilation methods often use simple filters to prevent external dust from entering the cabinet. However, with the increase of usage time, a large amount of dust will accumulate on the filter, which is very easy to cause blockage. Once the filter is blocked, if it is not cleaned in time, it is difficult for external air to enter the power cabinet smoothly. The air circulation inside the cabinet is obstructed, and the cooling effect is greatly reduced. Even if some power cabinets are equipped with cooling fans, the fans cannot work effectively when the filter is blocked, and effective cooling cannot be achieved. Utility Model Content

[0004] The purpose of this utility model is to provide a power cabinet for a static var generator, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A power cabinet for a static var generator includes a power cabinet body. Inspection doors are movably connected to both the front and rear sides of the power cabinet body. A cooling fan is fixedly installed on the upper end of the power cabinet body, and the cooling fan is electrically connected to the main controller inside the power cabinet body via a connecting cable. Multiple equipment racks are fixedly installed inside the power cabinet body. A ventilation mechanism is also fixedly installed on the rear side of the power cabinet body. The ventilation mechanism includes an air inlet pipe and an air guide pipe, which are fixedly connected to each other. A filter box is movably installed inside the air inlet pipe, and multiple filter plates are movably installed inside the filter box.

[0007] As a further preferred embodiment of this utility model, a fixed enclosure is fixedly installed on the outside of the air inlet pipe. One end of the air inlet pipe near the fixed enclosure is inserted into a through groove on one side of the power cabinet. The fixed enclosure is fixedly installed on one side of the power cabinet by screws. The air inlet pipe can provide an installation base point for the entire ventilation mechanism and allow air from the external environment to be introduced into the air duct through the air inlet pipe. At the same time, it also provides conditions for the installation of the filter box.

[0008] As a further preferred embodiment of this utility model, T-shaped slots are provided on both sides of the filter box. The T-shaped slots provide conditions for the quick assembly and disassembly of the filter plate. Multiple limiting grooves are also provided on both sides of the filter box.

[0009] As a further preferred embodiment of this utility model, a T-shaped insert plate is fixedly installed on one side of the filter plate. The T-shaped insert plate is inserted into the corresponding T-shaped slot. The multiple filter plates in the filter box are respectively placed on one side of the filter box and arranged alternately. The arrangement of multiple alternately arranged filter plates in the filter box allows external air to enter the air duct after being guided by the multiple filter plates in the filter box, thereby filtering the dust in the air and effectively ensuring the ventilation volume.

[0010] As a further preferred embodiment of this utility model, the filter box is provided with a top cover, the top cover has an operation hole, and two locking blocks are fixedly installed on both sides of the bottom of the top cover. A rubber strip is also fixedly installed on one side of the locking block. The locking block is locked onto the filter box by multiple locking blocks at the bottom, and one side of the locking block is locked into the corresponding limiting groove.

[0011] As a further preferred embodiment of this utility model, the air duct has multiple air outlets on both sides near the air inlet, and multiple air inlets on both sides of the vertical portion of the air duct. A guide shroud is fixedly installed on the air duct near the air outlet, and a guide shroud is also fixedly installed on the air duct near the air inlet. Through the arrangement of the air duct, the negative pressure generated by the cooling fan, together with the air inlet, filters the external air and enters the power cabinet through the air outlet. The hot air inside the power cabinet is then discharged through the air inlet again by the negative pressure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, a ventilation mechanism is installed inside the power cabinet. The ventilation mechanism consists of an air inlet pipe, an air duct, a filter box, and filter plates. Through multiple staggered filter plates inside the filter box, external air, in conjunction with the cooling fan, enters the air duct and the power cabinet. The air then enters the air duct again through the air inlet on the outside of the air duct and is discharged. This achieves the purpose of dust removal from the air entering the power cabinet and avoids the situation where the transmission filter screen becomes clogged, affecting the airflow inside the power cabinet, thus ensuring the heat dissipation effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a rear view of the main structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the ventilation mechanism structure of this utility model;

[0017] Figure 4 This is a schematic diagram showing the disassembled structure of the air inlet pipe and filter box of this utility model;

[0018] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0019] Figure 6 This is a partial structural diagram of the air duct of this utility model.

[0020] In the diagram: 1. Power cabinet; 2. Inspection door; 3. Cooling fan; 4. Equipment rack; 5. Ventilation mechanism; 6. Air inlet duct; 7. Air guide duct; 8. Filter box; 9. Filter plate; 10. Fixed enclosure; 11. T-shaped slot; 12. Limiting slot; 13. T-shaped insert plate; 14. Top cover; 15. Operating hole; 16. Locking block; 17. Air outlet; 18. Air inlet. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-6As shown, the present invention provides a power cabinet for a static reactive power generator, comprising a power cabinet body 1, with maintenance doors 2 movably connected to both the front and rear sides of the power cabinet body 1, a cooling fan 3 fixedly installed at the upper end of the power cabinet body 1, and the cooling fan 3 electrically connected to the main controller inside the power cabinet body 1 via a connecting wire, multiple equipment racks 4 fixedly installed inside the power cabinet body 1, and a ventilation mechanism 5 fixedly installed at the rear side of the power cabinet body 1, the ventilation mechanism 5 including an air inlet pipe 6 and an air guide pipe 7, the air inlet pipe 6 and the air guide pipe 7 being fixedly connected to each other, a filter box 8 movably installed inside the air inlet pipe 6, and multiple filter plates 9 movably installed inside the filter box 8.

[0023] like Figures 2-5 As shown, a fixed enclosure 10 is fixedly installed on the outside of the air inlet duct 6. One end of the air inlet duct 6 near the fixed enclosure 10 is inserted into a through groove on one side of the power cabinet 1, and the fixed enclosure 10 is fixedly installed on one side of the power cabinet 1 with screws. The air inlet duct 6 provides an installation base for the entire ventilation mechanism 5 and allows air from the outside environment to be introduced into the air duct 7 through the air inlet duct 6. At the same time, it also provides conditions for the installation of the filter box 8. T-shaped slots 11 are provided on both sides of the filter box 8. The T-shaped slots 11 provide conditions for the quick installation and removal of the filter plate 9. Multiple limiting slots 12 are also provided on both sides of the filter box 8. A T-shaped insert plate 13 is fixedly installed on one side of the filter plate 9. The T-shaped insert plate 13 is inserted into the filter plate 9. The filter is installed in the corresponding T-shaped slot 11, and multiple filter plates 9 in the filter box 8 are respectively placed on one side of the filter box 8 and arranged alternately. The multiple alternately arranged filter plates 9 in the filter box 8 can guide the outside air through the multiple filter plates 9 in the filter box 8 and enter the air duct 7, thereby filtering the dust in the air and effectively ensuring the ventilation volume. The filter box 8 is provided with a top cover 14, and an operation hole 15 is opened in the top cover 14. Two locking blocks 16 are fixedly installed on both sides of the bottom of the top cover 14. A rubber strip is also fixedly installed on one side of the locking block 16. The locking block 16 is locked onto the filter box 8 by the multiple locking blocks 16 at the bottom, and one side of the locking block 16 is locked into the corresponding limiting groove 12.

[0024] like Figure 2 , Figure 6 As shown, the air duct 7 has multiple air outlets 17 on both sides near the air inlet duct 6, and multiple air inlets 18 on both sides of the vertical part of the air duct 7. A guide shroud is fixedly installed on the air duct 7 near the air outlet 17, and a guide shroud is also fixedly installed on the air duct 7 near the air inlet 18. Through the arrangement of the air duct 7, the negative pressure generated by the cooling fan 3, together with the air inlet duct 6, filters the external air and enters the power cabinet 1 through the air outlet 17. The hot air in the power cabinet 1 is then discharged through the air inlet 18 through the negative pressure.

[0025] It should be noted that this utility model is a power cabinet for a static reactive power generator. When dissipating heat from the power cabinet 1, the main controller inside the power cabinet 1 can automatically start the cooling fan 3. The input end of the cooling fan 3 is connected to one end of the air duct 7. The negative pressure generated by the cooling fan 3 during operation draws air from the external environment of the power cabinet 1 into the air duct 7 through the air duct 7 and the air inlet pipe 6. Before this, the external air passes through the filter box 8 inside the air inlet pipe 6, where multiple filter plates 9 arranged alternately on both sides achieve the function of adsorbing and filtering dust in the air. This allows the air to be guided into the air duct 7 after passing through the multiple filter plates 9. The purpose of dust reduction is to reduce the amount of air entering the air duct 7. Part of the air will enter the power cabinet 1 through multiple air outlets 17, while the other part will continue to flow along the air duct 7 towards the cooling fan 3. As the air in the air duct 7 passes through multiple air inlets 18, due to the pressure difference between the inside and outside of the air duct 7, the air will flow from the high-pressure area to the low-pressure area. This allows the air flowing in the air duct 7 to draw the hot air in the power cabinet 1 into the air duct 7 through the air inlets 18 and then discharge it through the cooling fan 3. This achieves the purpose of cooling the space inside the power cabinet 1 and ensuring the air circulation inside the power cabinet 1 while reducing the amount of air entering the power cabinet 1.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power cabinet for a static var generator, characterized in that: The device includes a power cabinet (1), with maintenance doors (2) movably connected to both the front and rear sides of the power cabinet (1). A cooling fan (3) is fixedly installed on the upper end of the power cabinet (1), and the cooling fan (3) is electrically connected to the main controller inside the power cabinet (1) via a connecting line. Multiple equipment racks (4) are fixedly installed inside the power cabinet (1). A ventilation mechanism (5) is also fixedly installed on the rear side of the power cabinet (1). The ventilation mechanism (5) also includes an air inlet pipe (6) and an air guide pipe (7), and the air inlet pipe (6) and the air guide pipe (7) are fixedly connected to each other. A filter box (8) is movably installed inside the air inlet pipe (6), and multiple filter plates (9) are movably installed inside the filter box (8).

2. The power cabinet for a static var generator according to claim 1, characterized in that: A fixed enclosure (10) is fixedly installed on the outside of the air inlet pipe (6). One end of the air inlet pipe (6) near the fixed enclosure (10) is inserted into a through groove on one side of the power cabinet (1), and the fixed enclosure (10) is fixedly installed on one side of the power cabinet (1) by screws.

3. The power cabinet for a static var generator according to claim 1, characterized in that: The filter box (8) has T-shaped slots (11) on both sides, and multiple limiting slots (12) are also provided on both sides inside the filter box (8).

4. The power cabinet for a static var generator according to claim 3, characterized in that: A T-shaped insert (13) is fixedly installed on one side of the filter plate (9). The T-shaped insert (13) is inserted into the corresponding T-shaped slot (11). The multiple filter plates (9) in the filter box (8) are respectively placed on one side of the filter box (8) and arranged alternately.

5. A power cabinet for a static var generator according to claim 4, characterized in that: The filter box (8) is provided with a top cover (14), and an operation hole (15) is provided in the top cover (14). Two locking blocks (16) are fixedly installed on both sides of the bottom of the top cover (14). A rubber strip is also fixedly installed on one side of the locking block (16). The locking block (16) is locked onto the filter box (8) by multiple locking blocks (16) at the bottom, and one side of the locking block (16) is locked into the corresponding limiting groove (12).

6. The power cabinet for a static var generator according to claim 1, characterized in that: The air duct (7) has multiple air outlets (17) on both sides near the air inlet (6), and multiple air inlets (18) on both sides of the vertical part of the air duct (7). A flow guide is fixedly installed on the air duct (7) near the air outlet (17), and a flow guide is also fixedly installed on the air duct (7) near the air inlet (18).

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