Modularized low-voltage switch cabinet

Abstract

The utility model relates to the technical field of low-voltage switch cabinets, in particular to a modularized low-voltage switch cabinet, which comprises a cabinet body, an air blowing assembly is fixedly connected to the top of the cabinet body, an air inlet is formed in the top of the cabinet body, a separation frame is vertically inserted in the cabinet body and used for uniformly separating the space in the cabinet body, side frames are fixedly connected to the two sides of the separation frame, and the side frames are fixedly connected to the top of the cabinet body. A plurality of groups of air outlet holes are formed in the positions, corresponding to the net barrels, of the side walls of the separation frames, the upper ends of the separation frames are in butt joint with the air inlets, and ventilation openings are formed in the lower ends of the side walls of the cabinet body; the air blowing assembly blows air to the interior of the separation frame through the air inlet, then blows air to space modules on two sides in the cabinet body through the air outlet holes and the net cylinder for heat dissipation, and finally discharges the air through the ventilation openings, and the structure of blowing air to the middle of the cabinet body and exhausting air to two sides is adopted, so that the poor heat dissipation effect caused by the fact that devices in the cabinet body are far away from the air outlet area is avoided; and the uniformity of the heat dissipation effect in the cabinet body is improved.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear, specifically a modular low-voltage switchgear. Background Technology

[0002] Low-voltage switchgear is suitable for power plants, petroleum, chemical, metallurgy, textile, high-rise building and other industries for power transmission, distribution and power conversion. It is equipped with external switch distribution control panel and internal low-voltage switch group, circuit protection system, etc.

[0003] Existing low-voltage switchgear, such as the electrical control switchgear proposed in patent application number "CN202120484632.5", includes a switchgear, a fan, a cabinet door, and other structures. The top of the switchgear is provided with a ventilation slot, the fan is installed on the switchgear and covers the ventilation slot, the bottom of the switchgear is provided with multiple first heat dissipation holes, and the other three sides of the switchgear away from the cabinet door are provided with heat dissipation slots. The heat dissipation slots are close to the bottom of the switchgear, and the ventilation slots are connected to the first heat dissipation holes and heat dissipation slots through the inside of the switchgear. The fan blows cold air from outside the switchgear into the switchgear, and the cold air dissipates the heat generated by the components outside the switchgear through the heat dissipation slots and the first heat dissipation holes.

[0004] However, the existing technology has defects. Its fan blows air from the top of the cabinet into the cabinet, and the air is discharged from top to bottom inside the cabinet. When the cabinet is high, the components at the bottom of the cabinet are far from the air outlet. The air reaching the bottom carries more heat, which is not effective in heat dissipation for the components at the bottom of the cabinet. The uniformity of heat dissipation inside the cabinet needs to be improved. Therefore, a modular low-voltage switch cabinet is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a modular low-voltage switchgear to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A modular low-voltage switchgear includes a cabinet body, a blower assembly fixedly connected to the top of the cabinet body, an air inlet on the top of the cabinet body, a partition frame vertically inserted inside the cabinet body to evenly divide the internal space of the cabinet body, side frames fixedly connected to both sides of the partition frame, a mesh tube fixedly connected to the side frame, multiple sets of air outlet holes opened on the side wall of the partition frame corresponding to the position of the mesh tube, the upper end of the partition frame is connected to the air inlet, and a ventilation opening is opened at the lower end of the side wall of the cabinet body.

[0008] Preferably, the blower assembly includes an external box, which is fixed to the upper end of the cabinet. A cooling fan is fixed to the top of the inner wall of the external box, with the air outlet of the cooling fan facing downward. A guide plate is fixedly mounted obliquely inside the external box to guide the air discharged by the cooling fan to the air inlet.

[0009] Preferably, the top of the external box is fixedly connected with a dustproof top plate, the side wall of the cabinet body is fixedly connected with a clamping rail at the position on both sides of the air vent, a dustproof side plate is installed in the clamping rails, and the dustproof side plate is used for dustproofing the air vent.

[0010] Preferably, the inside of the partition frame is fixedly connected with a cooling pipeline, the cooling pipeline is located below the air inlet, both ends of the cooling pipeline are fixedly connected with the bottom of the partition frame, and the bottom of the partition frame and the bottom of the cabinet body are provided with holes in communication with both ends of the cooling pipeline, and the holes are threadedly connected with connecting pipes.

[0011] Preferably, the diameters of the air outlets are increased from top to bottom, so that the air volume at the lower end of the partition frame is increased, and the shape of the mesh cylinder is a semicylindrical shape.

[0012] Preferably, the both sides of the inner wall of the cabinet body are fixedly connected with mounting seats, the mounting seats are connected with mounting plates, and the mounting plates are located on both sides of the partition frame.

[0013] The cabinet body has the advantages that:

[0014] The air blowing assembly is installed on the top of the cabinet body as a separate module, the space in the cabinet body is divided into two modules by the partition frame, the air blowing assembly blows air into the partition frame through the air inlet, the air is blown and radiated to the two space modules in the cabinet body through the air outlet and the mesh cylinder, and finally is discharged through the air vent. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor;

[0016] Figure 1 is a cabinet body structure schematic view of the present application;

[0017] Figure 2 is a cabinet body internal structure schematic view of the present application;

[0018] Figure 3 is a cabinet body cross-section structure schematic view of the present application;

[0019] Figure 4 is a partition frame structure schematic view of the present application;

[0020] Figure 5 is a mesh cylinder structure schematic view of the present application;

[0021] The reference signs in the drawings are as follows:

[0022] 1, cabinet body; 2, external box; 4, dustproof top plate; 5, flow guide plate; 6, air inlet; 7, ventilation opening; 8, dustproof side plate; 9, rail clamping; 10, partition frame; 11, air outlet hole; 12, side frame; 13, mesh tube; 14, cooling pipeline; 15, connecting pipe; 16, mounting seat; 17, mounting plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] A modular low-voltage switch cabinet, as shown in Figures 1-5 The utility model discloses a modular low-voltage switch cabinet, as shown in the drawings, including cabinet body 1, the top of cabinet body 1 is fixedly connected with blowing assembly, and the top of cabinet body 1 is provided with air inlet 6, and the inside of cabinet body 1 is vertically inserted with partition frame 10, which is used for uniformly separating the space in the inside of cabinet body 1, and the both sides of partition frame 10 are fixedly connected with side frame 12, and the side frame 12 is fixedly connected with mesh tube 13, and the position corresponding to mesh tube 13 on the side wall of partition frame 10 is provided with a plurality of air outlet holes 11, and the upper end of partition frame 10 is connected with air inlet 6, and the lower end of the side wall of cabinet body 1 is provided with ventilation opening 7.

[0025] The low-voltage switch cabinet is divided into two modules, which are cabinet body 1 and blowing assembly, and the inside is also divided into two modules, which generates two spaces, and the front end of cabinet body 1 is sealedly installed with cabinet door through hinge, and blowing assembly is installed as a separate module on the top of the outer wall of box body, and the space in the inside of cabinet body 1 is divided into two modules through partition frame 10, and blowing assembly blows air to the inside of partition frame 10 through air inlet 6, and the air is blown to the two space modules in the inside of cabinet body 1 through air outlet hole 11 and mesh tube 13, and finally is discharged through ventilation opening 7, and the structure of blowing air in the middle of cabinet body 1 and discharging air to both sides avoids the poor heat dissipation effect caused by the fact that the devices in the inside of cabinet body 1 are far away from the air outlet area, and improves the uniformity of the heat dissipation effect in the inside of cabinet body 1.

[0026] As shown in Figures 1-3 The blowing assembly includes external box 2, and external box 2 is fixedly connected to the upper end of cabinet body 1, and the top of the inner wall of external box 2 is fixedly connected with heat dissipation fan, and the air outlet of heat dissipation fan is installed downward, and the inside of external box 2 is fixedly connected with flow guide plate 5, which is inclined, and is used for guiding the air discharged by heat dissipation fan into air inlet 6.

[0027] The model of the heat dissipation fan is DC8025, which is installed on the inner wall of the upper end of the external box 2. A circular hole is formed in the upper end of the external box 2, and the fan blows air into the external box 2 through the circular hole. The air is guided by the flow guide plate 5 and enters the air inlet 6, and then enters the partition frame 10.

[0028] As shown in Figure 1 , the dustproof top plate 4 is fixedly connected to the top of the external box 2. The rail clamps 9 are fixedly connected to the positions on both sides of the air vents 7 on the side walls of the cabinet body 1. The dustproof side plates 8 are inserted and installed between the two groups of rail clamps 9, which are used to prevent dust from entering the air vents 7.

[0029] The dustproof top plate 4 prevents dust from entering the external box 2. The dustproof side plates 8 are inserted and installed in the two groups of rail clamps 9, which block dust from the air passing through the air vents 7. The installation is easy to replace and disassemble.

[0030] As shown in Figure 2 and Figure 3 , the cooling pipeline 14 is fixedly connected inside the partition frame 10. The cooling pipeline 14 is located below the air inlet 6. The two ends of the cooling pipeline 14 are fixedly connected to the bottom of the partition frame 10. The bottom of the partition frame 10 and the bottom of the cabinet body 1 are provided with holes that are in communication with the two ends of the cooling pipeline 14. The two groups of holes are threadedly connected with the connecting pipes 15.

[0031] The two groups of connecting pipes 15 are connected with the two ends of the cooling pipeline 14, respectively. One group of connecting pipes 15 is filled with a liquid with a lower temperature, so that the liquid enters the cooling pipeline 14 and is discharged through the other group of connecting pipes 15. The air in the partition frame 10 passes through the side wall of the cooling pipeline before being discharged from the air outlet hole 11, so that the air discharged from the partition frame 10 has a lower temperature and good heat dissipation effect. The connecting pipes 15 are threadedly connected, which is easy to disassemble, so that the partition frame 10 can be easily pulled out.

[0032] As shown in Figure 4 and Figure 5 , the diameters of the multiple groups of air outlet holes 11 increase from top to bottom, which is used to increase the air volume at the lower end of the partition frame 10. The shape of the mesh cylinder 13 is set as a semi-cylindrical shape.

[0033] The diameters of the air outlet holes 11 increase from top to bottom, which avoids the air from being discharged through the upper end of the partition frame 10. Since the diameters of the air outlet holes 11 at the top are small, the air is prevented from being quickly discharged from the partition frame 10, so that the air can reach the lower end of the partition frame 10, and the devices in the lower area inside the cabinet body 1 can be in contact with the cold air. The surface of the mesh cylinder 13 is arc-shaped, so that the air can be blown out in multiple directions.

[0034] As shown in Figures 1-2 , the mounting seats 16 are fixedly connected to the inner walls of the cabinet body 1 on both sides. The mounting seats 16 are clamped and installed with the mounting plates 17. The multiple groups of mounting plates 17 are located on both sides of the partition frame 10.

[0035] The electrical device is installed on the installation plate 17, and a rectangular opening is formed through the installation plate 17, so as to facilitate air circulation in the cabinet 1.

[0036] The working principle of the modular low-voltage switch cabinet is as follows:

[0037] The blowing assembly is installed as a separate module on the top of the outer wall of the cabinet, and the space in the cabinet 1 is divided into two modules by the partition frame 10. The blowing assembly blows air into the partition frame 10 through the air inlet 6, and the air is blown and radiated to the two space modules in the cabinet 1 through the surface of the heat dissipation pipeline, the air outlet hole 11 and the mesh cylinder 13, and finally discharged through the ventilation opening 7. The structure of blowing air in the middle of the cabinet 1 and discharging air to the two sides avoids the poor heat dissipation effect caused by the long distance between the device in the cabinet 1 and the air outlet area, and improves the uniformity of the heat dissipation effect in the cabinet 1.

[0038] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A modular low voltage switchgear comprising a cabinet (1), characterized in that, The top of the cabinet body (1) is fixed with a blowing assembly, the top of the cabinet body (1) is provided with an air inlet (6), the inside of the cabinet body (1) is vertically inserted with a partition frame (10) for uniformly separating the space inside the cabinet body (1), the both sides of the partition frame (10) are fixed with side frames (12), the side frames (12) are fixed with mesh tubes (13), the partition frame (10) is provided with a plurality of air outlet holes (11) corresponding to the positions of the mesh tubes (13), the upper end of the partition frame (10) is in abutment with the air inlet (6), and the lower end of the side wall of the cabinet body (1) is provided with a ventilation opening (7).

2. A modular low voltage switchgear according to claim 1, characterized in that, The blowing assembly comprises an external box (2) fixed to the upper end of the cabinet body (1), a heat dissipation fan fixed to the top inner wall of the external box (2), the air outlet of the heat dissipation fan is downwardly installed, and a guide plate (5) is fixed to the inside of the external box (2) at an angle, for guiding the air discharged by the heat dissipation fan into the air inlet (6).

3. A modular low voltage switchgear according to claim 2, characterized in that, The top of the external box (2) is fixed with a dustproof top plate (4), the side wall of the cabinet body (1) is fixed with clamping rails (9) on both sides of the ventilation opening (7), a dustproof side plate (8) is installed between the two clamping rails (9), and the dustproof side plate (8) is used for dustproof of the ventilation opening (7).

4. A modular low voltage switchgear according to claim 1, characterized in that, The inside of the partition frame (10) is fixed with a cooling pipeline (14), the cooling pipeline (14) is located below the air inlet (6), the both ends of the cooling pipeline (14) are fixed with the bottom of the partition frame (10), and the bottom of the partition frame (10) and the bottom of the cabinet body (1) are provided with holes in communication with the both ends of the cooling pipeline (14), and the both holes are threadedly connected with a connecting pipe (15).

5. A modular low voltage switchgear according to claim 1, characterized in that, The diameters of the plurality of air outlet holes (11) increase from top to bottom, for increasing the air volume at the lower end of the partition frame (10), and the mesh tube (13) is in the shape of a semi-cylindrical.

6. A modular low voltage switchgear according to claim 1, characterized in that, The both sides of the inner wall of the cabinet body (1) are fixed with mounting seats (16), the mounting seats (16) are clamped with mounting plates (17), and the plurality of mounting plates (17) are located on both sides of the partition frame (10).

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