Direct current power distribution cabinet

Abstract

The utility model relates to the technical field of power distribution cabinets, and discloses a DC power distribution cabinet comprising a power distribution cabinet body, the upper and lower side surfaces of the power distribution cabinet body are both provided with filter screen plates, the upper and lower side surfaces of the power distribution cabinet body are both provided with heat dissipation ports matched with the filter screen plates, and the upper and lower side surfaces of the power distribution cabinet body are both fixedly provided with fixing frames matched with the heat dissipation ports. A plurality of circular frames are fixedly installed in the fixing frame, cooling fans used for cooling are fixedly installed in the circular frames, a drawing frame capable of being taken out is inserted into one side of the lower fixing frame, a plurality of through holes matched with the filter screen plate are formed in the inner bottom of the drawing frame and the inner side wall of the fixing frame, and the drawing frame is filled with a water absorption medium; the sides, away from the power distribution cabinet body, of the two fixing frames are provided with a slidable sealing plate, and a plurality of through holes matched with the through holes are formed in the sealing plate in a penetrating mode. According to the utility model, moisture contained in air entering the power distribution cabinet body is reduced, and electrical products in the power distribution cabinet body are prevented from being damaged by the moisture.

Description

Technical Field

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

[0002] The electrical components and wiring are installed inside the distribution cabinet to distribute electrical energy to lower-level power distribution equipment in different locations. Modern ships are equipped with ship-specific distribution cabinets to effectively distribute electrical energy to different power-consuming units and ensure the stable operation of the ship.

[0003] A search revealed a patent, CN213717443U, which discloses a marine power distribution cabinet, comprising a cabinet body and a drip-proof ventilation top. The lower part of the cabinet body has several perforated mesh covers, and a first electric fan is located in the middle of the cabinet body. The top of the cabinet body has an opening with several second electric fans installed at the opening. First water-blocking plates are welded to the left and right ends of the opening. Air outlet plates are located on both sides of the drip-proof ventilation top, and these plates are inclined outwards with several air outlet holes. The bottom of the drip-proof ventilation top has a connecting part that matches the opening, and several bolts are installed on the connecting part corresponding to the positions of the first water-blocking plates. The drip-proof ventilation top is fitted onto the opening at the top of the cabinet body through the connecting part and fixedly connected to the first water-blocking plates by the bolts on the connecting part. This utility model of a marine power distribution cabinet provides good heat dissipation and effectively prevents water or other liquids from entering the cabinet body.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned comparative document describes a method that welds first baffles to the left and right ends of the cabinet opening to effectively prevent water or other liquids from flowing into the cabinet from the top. However, in reality, ships spend a lot of time on the water, resulting in a high level of moisture in the air. The comparative document describes a method that uses a cooling fan to draw outside air into the distribution cabinet and expel the heated air. The moisture in the air can come into contact with the electrical components inside the distribution cabinet, and prolonged contact with moisture may damage the electrical components or other parts. Therefore, there is an urgent need in the field to improve the distribution cabinet to address the shortcomings of the prior art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a DC power distribution cabinet that reduces the amount of moisture in the air entering the cabinet, thereby preventing moisture from damaging the electrical products inside the cabinet.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A DC power distribution cabinet includes a cabinet body, with filter screens on both the upper and lower sides of the cabinet body. Heat dissipation vents adapted to the filter screens are also provided on both the upper and lower sides of the cabinet body. Fixed frames adapted to the heat dissipation vents are fixedly installed on both the upper and lower sides of the cabinet body. Several circular frames are fixedly installed within the fixed frames, and cooling fans for heat dissipation are fixedly installed within each circular frame. A removable pull-out frame is inserted into one side of the lower fixed frame. Several through holes adapted to the filter screens are provided on the bottom of the pull-out frame and the inner sidewall of the fixed frame. The pull-out frame is filled with an absorbent medium. A sliding sealing plate is provided on the side of the two fixed frames away from the cabinet body. Several through holes adapted to the through holes are provided through the sealing plate. After the sealing plate moves, it completely seals the through holes on the fixed frames.

[0008] Preferably, a fixing plate is fixedly installed on the side of each of the two fixed frames, and a telescopic device with a telescopic effect is fixedly installed on the side of the fixing plate. A connecting plate that is fixedly installed on the side of the closed plate is fixedly installed with the telescopic end of the telescopic device. Several temperature monitoring devices for monitoring temperature changes are fixedly installed on the inner wall of the distribution cabinet.

[0009] Preferably, two symmetrical plug-in brackets are fixedly installed on the side of the fixed frame, and the sealing plate is plugged between the two plug-in brackets.

[0010] Preferably, the top of the distribution cabinet is provided with a top frame that is fixedly installed with the fixed frame, and the top frame is in the shape of an inverted V.

[0011] Preferably, the top frame is provided with a bent water collection trough, the side of the distribution cabinet is provided with a water collection tank, and a water supply pipe is provided between the water collection tank and the water collection trough.

[0012] Preferably, the upper and lower side walls of the power distribution cabinet are provided with mounting steps that are compatible with the filter screen, and the filter screen is fixedly installed in the mounting steps by fasteners.

[0013] Preferably, a handle is provided on the outer side of the pull-out frame, and a sealing ring and a magnetic block are embedded between one side of the pull-out frame and the other side of the fixed frame.

[0014] To address the shortcomings of existing technologies, this utility model provides a DC power distribution cabinet that overcomes these deficiencies. The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, when the temperature inside the distribution cabinet is within the normal threshold range, the sealing plate completely covers the through hole on the fixed frame, and the distribution cabinet is in a closed state to prevent moisture in the air from floating into the distribution cabinet. When the temperature inside the distribution cabinet rises to the threshold requiring cooling, the sealing plate moves, aligning the position of the through hole with the position of the through hole on the fixed frame, and the cooling fan inside the circular frame is turned on. The lower cooling fan draws outside air into the distribution cabinet, while the upper cooling fan exhausts the air inside the distribution cabinet to the outside. When the cold outside air passes through the pull-out frame, it comes into contact with the water-absorbing medium, such as a molecular sieve, inside the pull-out frame. The water-absorbing medium adsorbs the moisture contained in the air, reducing the amount of moisture in the air entering the distribution cabinet and preventing moisture from damaging the electrical products inside the distribution cabinet.

[0016] 2. In this utility model, the temperature of the exhaust air is relatively high, while the temperature of the top frame is relatively low. Therefore, the water vapor contained in the exhaust air will condense. The condensed water droplets flow through the inclined top frame into the water collection tank. The condensed water flows into the water collection box through the water supply pipe for collection, thereby reducing the amount of water vapor contained in the air near the distribution cabinet.

[0017] 3. In this utility model, a top frame is provided to prevent impurities or dripping water from falling onto the fixed frame and flowing into the power distribution cabinet.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the overall front view of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall rear view of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall cross-section of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of this utility model viewed along another axis.

[0024] Figure 5 This is a schematic diagram of the structure of the fixed frame in this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the closed plate in this utility model;

[0026] Figure 7 for Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 8 for Figure 3 Enlarged structural diagram at point B;

[0028] Figure 9 for Figure 4 Enlarged structural diagram at point C;

[0029] Figure 10 for Figure 4 Enlarged structural diagram at point D.

[0030] In the diagram: 1. Distribution cabinet; 2. Filter screen; 3. Heat dissipation vent; 4. Fixing frame; 5. Circular frame; 6. Cooling fan; 7. Pull-out frame; 8. Through hole; 9. Enclosure plate; 10. Through hole; 11. Telescopic device; 12. Connecting plate; 13. Plug-in bracket; 14. Temperature monitoring device; 15. Top frame; 16. Water collection trough; 17. Water collection tank; 18. Water supply pipe; 19. Mounting step; 20. Fixing plate; 21. Handle. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1-10A DC power distribution cabinet includes a cabinet body 1. Filter screens 2 are provided on both the upper and lower sides of the cabinet body 1. Heat dissipation vents 3, adapted to the filter screens 2, are provided on both the upper and lower sides of the cabinet body 1. Fixing frames 4, adapted to the heat dissipation vents 3, are fixedly installed on both the upper and lower sides of the cabinet body 1. Several circular frames 5 are fixedly installed inside the fixing frames 4. Cooling fans 6 for heat dissipation are fixedly installed inside each circular frame 5. A removable pull-out frame 7 is inserted into one side of the lower fixing frame 4. Several through holes 8, adapted to the filter screens 2, are provided on the bottom of the pull-out frame 7 and the inner wall of the fixing frame 4. The pull-out frame 7 is filled with… The two fixed frames 4 are filled with an absorbent medium. On the side away from the distribution cabinet 1, there is a sliding closed plate 9. Several through holes 10 that are adapted to the through holes 8 are opened through the closed plate 9. After the closed plate 9 is moved, it completely closes several through holes 8 on the fixed frames 4. Fixed plates 20 are fixedly installed on the sides of the two fixed frames 4. Telescopic devices 11 with telescopic effect are fixedly installed on the sides of the fixed plates 20. Connecting plates 12 that are fixedly installed on the sides of the closed plate 9 are fixedly installed with the telescopic end of the telescopic device 11. Several temperature monitoring devices 14 for monitoring temperature changes are fixedly installed on the inner side wall of the distribution cabinet 1.

[0033] Specifically, the aforementioned temperature monitoring device 14 is a sensing device in the prior art capable of monitoring the temperature inside the distribution cabinet 1. By monitoring the internal temperature of the distribution cabinet 1 using the temperature monitoring device 14, when the temperature inside the distribution cabinet 1 is within the normal threshold range, the sealing plate 9 completely covers the through hole 8 on the fixed frame 4, and the distribution cabinet 1 is in a closed state, preventing moisture in the air from floating into the distribution cabinet 1. When the temperature inside the distribution cabinet 1 rises to the threshold requiring cooling, the telescopic device 11 is activated. The telescopic end of the telescopic device 11 moves the sealing plate 9, aligning the position of the through hole 10 with the position of the through hole 8 on the fixed frame 4 and with the position of the through hole 8 on the pull-out frame 7. The cooling fan 6 inside the circular frame 5 is then activated, drawing outside air into the distribution cabinet 1. The upper cooling fan 6 draws in air and exhausts it to the outside. When the outside cold air passes through the pull-out frame 7, it comes into contact with the water-absorbing medium (such as a molecular sieve) inside the pull-out frame 7. The water-absorbing medium absorbs the water vapor in the air, reducing the amount of water vapor in the air entering the distribution cabinet 1 and preventing water vapor from damaging the electrical products inside the distribution cabinet 1. At the same time, the water-absorbing medium is placed in the pull-out frame 7, and the pull-out frame 7 can be pulled out from one side of the lower fixed frame 4, so that the water-absorbing medium can be replaced regularly and conveniently. The aforementioned distribution cabinet 1 is a DC distribution cabinet, which is equipped with circuit breakers, fuses, relays, rectifier modules, inverter modules, and DC / DC choppers, etc. The above electrical appliances are all electrical appliances installed in existing DC distribution cabinets and are not shown in the figure.

[0034] As a technical optimization of this utility model, two symmetrical plug-in brackets 13 are fixedly installed on the side of the fixed frame 4. The sealing plate 9 is plugged between the two plug-in brackets 13. The sealing plate 9 moves between the two plug-in brackets 13. The plug-in brackets 13 limit the sealing plate 9 to ensure that the position of the sealing plate 9 does not shift when it is displaced.

[0035] As a technical optimization of this utility model, a top frame 15 is provided on the top of the distribution cabinet 1 and fixedly installed with the fixed frame 4. The top frame 15 is inverted V shape and a bent water collection trough 16 is provided inside the top frame 15. A water collection tank 17 is provided on the side of the distribution cabinet 1. A water supply pipe 18 is provided between the water collection tank 17 and the water collection trough 16. The top frame 15 is used to prevent impurities or dripping water from falling onto the fixed frame 4 and flowing into the distribution cabinet 1. When the air inside the distribution cabinet 1 is discharged and comes into contact with the top frame 15, the water vapor contained in the discharged air will condense because the temperature of the discharged air is high and the temperature of the top frame 15 is low. The condensed water droplets flow through the inclined top frame 15 into the water collection trough 16. The condensed water flows into the water collection tank 17 through the water supply pipe 18 for collection, thereby reducing the amount of water vapor in the air near the distribution cabinet 1.

[0036] As a technical optimization of this utility model, the upper and lower side walls of the power distribution cabinet 1 are provided with installation steps 19 that are compatible with the filter screen 2. The filter screen 2 is fixedly installed in the installation steps 19 by fasteners, which facilitates the installation of the filter screen 2 or its replacement later.

[0037] As a technical optimization of this utility model, the pull-out frame 7 is provided with a handle 21 on the outer side. A sealing ring and a magnetic block are embedded between one side of the pull-out frame 7 and the other side of the fixed frame 4. The connection between the sealing ring and the magnetic block are common technical means in the prior art, which facilitates the removal and insertion of the pull-out frame 7 and has a sealing effect.

[0038] All of the electrical products mentioned above can be purchased from the market. They are mature technologies and have been fully disclosed, so they will not be repeated in the instruction manual. All of the electrical products mentioned above are equipped with power cords, and they are electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power cords. The main controller can be a conventional known device such as a computer that plays a control role.

[0039] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A DC power distribution cabinet, comprising a cabinet body (1), characterized in that, The distribution cabinet (1) is equipped with filter screens (2) on both the upper and lower sides. The distribution cabinet (1) is also equipped with heat dissipation vents (3) that are compatible with the filter screens (2). The distribution cabinet (1) is also equipped with fixed frames (4) that are compatible with the heat dissipation vents (3) on both the upper and lower sides. Several circular frames (5) are fixedly installed inside the fixed frames (4). Each circular frame (5) is equipped with a cooling fan (6) for heat dissipation. A removable drawer is inserted into one side of the lower fixed frame (4). The bottom of the pull frame (7) and the inner side wall of the fixed frame (4) are provided with several through holes (8) that are compatible with the filter screen (2). The pull frame (7) is filled with water-absorbing medium. The two fixed frames (4) are provided with a sliding closed plate (9) on the side away from the power distribution cabinet (1). Several through holes (10) that are compatible with the through holes (8) are opened through the closed plate (9). After the closed plate (9) moves, it completely closes the through holes (8) on several fixed frames (4).

2. A DC power distribution cabinet according to claim 1, characterized in that, Two fixed frames (4) are fixedly installed with fixed plates (20) on their sides. The fixed plates (20) are fixedly installed with telescopic devices (11) that have a telescopic effect. The closed plate (9) is fixedly installed with a connecting plate (12) that is fixedly installed with the telescopic end of the telescopic device (11). Several temperature monitoring devices (14) for monitoring temperature changes are fixedly installed on the inner wall of the power distribution cabinet (1).

3. A DC power distribution cabinet according to claim 1, characterized in that, Two symmetrical plug-in brackets (13) are fixedly installed on the side of the fixed frame (4), and the closed plate (9) is inserted between the two plug-in brackets (13).

4. A DC power distribution cabinet according to claim 1, characterized in that, The top of the power distribution cabinet (1) is provided with a top frame (15) that is fixedly installed with the fixed frame (4). The top frame (15) is in the shape of an inverted V.

5. A DC power distribution cabinet according to claim 4, characterized in that, The top frame (15) is equipped with a bent water collection trough (16), and the side of the power distribution cabinet (1) is equipped with a water collection tank (17). A water supply pipe (18) is connected between the water collection tank (17) and the water collection trough (16).

6. A DC power distribution cabinet according to claim 1, characterized in that, The upper and lower side walls of the distribution cabinet (1) are provided with installation steps (19) that are compatible with the filter screen (2). The filter screen (2) is fixedly installed in the installation steps (19) by fasteners.

7. A DC distribution cabinet according to claim 1, characterized in that, A handle (21) is provided on the outer side of the pull-out frame (7), and a sealing ring and a magnetic block are embedded between one side of the pull-out frame (7) and the other side of the fixed frame (4).

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