Protective maintenance device for low-voltage equipment of box-type substation

Abstract

The utility model relates to the technical field of power equipment, and discloses a protective maintenance device for low-voltage equipment of a box-type substation, which comprises a box body, the inner wall of the box body is provided with a dehumidification assembly for dehumidification, the inner wall of the box body is fixedly connected with a fixer, the inner wall of the fixer is rotatably connected with a rotating column, and the rotating column is fixedly connected with the box body. The outer wall of the rotating column is fixedly connected with a wire bunching plate, the inner wall of the other end of the wire bunching plate is fixedly connected with a fixing rod, the outer wall of the fixing rod is sleeved with a spring, the inner wall of the wire bunching plate is slidably connected with a limiting rod, and the limiting rod is slidably connected with a fixing plate; and the outer wall of the fixed box is fixedly connected to the inner wall of the top of the box body. According to the utility model, when the wire needs to be overhauled, the wire can be overhauled only by opening the wire bunching plate, which is convenient for subsequent workers to overhaul and find the wire and greatly improves the overhaul efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a protection and maintenance device for low-voltage equipment in a prefabricated substation. Background Technology

[0002] A series of electrical equipment used in a prefabricated substation for low-voltage power distribution, control, protection, and metering mainly includes the following categories: low-voltage switchgear, low-voltage busbars and bus trunking, low-voltage capacitors and reactive power compensation devices, and low-voltage distribution boxes and control equipment. A low-voltage distribution box is a complete set of equipment that assembles low-voltage switchgear, fuses, metering equipment, control equipment, etc. into a box, and is used for the distribution, control, and protection of low-voltage circuits.

[0003] Low-voltage distribution boxes typically include components such as circuit breakers, disconnect switches, fuses, contactors, thermal relays, voltmeters, ammeters, electricity meters, terminal blocks, and residual current devices (RCDs). When bundling wires inside the distribution box, the wires are usually first straightened, grouped according to their direction, and secured to the wire troughs or fixed points in the distribution box using nylon cable ties. The wires should be arranged neatly, horizontally and vertically, avoiding crossing and confusion, ensuring a neat, aesthetically pleasing overall layout and easy maintenance.

[0004] In existing technologies, some low-voltage distribution boxes typically use nylon cable ties to fix the wires. However, nylon cable ties are prone to aging and becoming brittle, which leads to a decrease in fixing force and the wires may become loose. Furthermore, if the wire position needs to be adjusted after installation, the nylon cable ties usually need to be cut and replaced with new ones, which is quite troublesome. Therefore, a protective and maintenance device for low-voltage equipment in box-type substations is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a protective and maintenance device for low-voltage equipment in a box-type substation, aiming to improve the problem that nylon cable ties are prone to aging and embrittlement in the prior art, resulting in a decrease in fixing force and complicated maintenance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A protective and maintenance device for low-voltage equipment in a prefabricated substation includes a box-type enclosure. The inner wall of the enclosure is provided with a dehumidification assembly for dehumidification. A retainer is fixedly connected to the inner wall of the enclosure. A rotating column is rotatably connected to the inner wall of the retainer. A cable management plate is fixedly connected to the outer wall of the rotating column. A fixing rod is fixedly connected to the inner wall of the other end of the cable management plate. A spring is sleeved on the outer wall of the fixing rod. A limit rod is slidably connected to the inner wall of the cable management plate, and a fixing plate is slidably connected to the limit rod.

[0008] As a further description of the above technical solution:

[0009] The dehumidification assembly includes a fixed box, the outer wall of which is fixedly connected to the inner top wall of the housing, a compressor is fixedly connected to the outer wall of the fixed box, a heat pipe is fixedly connected to the inner wall of the compressor, and multiple heat dissipation plates are fixedly connected to the outer wall of the heat pipe.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the heat sink is fixedly connected to the inner wall of the fixed box, and the outer wall of the fixed box is provided with multiple air inlet slots;

[0012] As a further description of the above technical solution:

[0013] A water pipe is fixedly connected to the inner wall of the fixed box, and a low-voltage device is fixedly connected to the inner wall of the box body;

[0014] As a further description of the above technical solution:

[0015] An inclined plate is fixedly connected to the inner wall of the fixed box, and an air vent is provided on the outer wall of the fixed box.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the fixing plate is provided with a sliding groove, and the inner wall of the fixing plate is provided with a limit hole;

[0018] As a further description of the above technical solution:

[0019] One end of the fixing rod is fixedly connected to the inner wall of the cable tray, and the other end of the spring is fixedly connected to the bottom of the limiting rod.

[0020] As a further description of the above technical solution:

[0021] Multiple nameplates are fixedly connected to the inner wall of the enclosure, and multiple busbar grooves are opened on the inner wall of the enclosure. A door is rotatably connected to the outer wall of the enclosure.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the wire is placed on the inner wall of the busbar trough. At this time, with the assistance of the rotating column, the wire harness plate is rotated to the inside of the fixed plate groove. Under the control of the spring, the limiting rod will retract to the inner wall of the wire harness plate. When the limiting rod rotates to the inner wall of the limiting hole, the spring releases elastic potential energy and pushes the limiting rod into the inner wall of the limiting hole, thereby fixing the wire on the inner wall of the busbar trough. This achieves the goal of fixing the wire to the inner wall of the busbar trough, so that the wire can be neatly and regularly arranged on the inner wall of the box. When the wire needs to be inspected, the wire harness plate can be opened to carry out the inspection operation, which is convenient for subsequent maintenance and use by the staff and makes it easy for the staff to find the wire.

[0024] 2. In this utility model, when outside air enters the inner wall of the fixed box through the air inlet slot, the compressor starts and discharges the refrigerant into the inner wall of the heat pipe. At this time, the heat pipe heats the outer wall of the heat sink. The moisture inside the air comes into contact with the low temperature and condenses into water droplets, which then fall onto the surface of the inclined plate. Because the inclined plate is installed at an angle, the water droplets slide to the water pipe due to the angle and are discharged through the water pipe. After that, the dehumidified air is discharged through the air outlet to the inner wall of the fixed box, so that the inside of the box is kept dry and the wires are not affected by excessive moisture. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a protective and maintenance device for low-voltage equipment in a box-type substation, as proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the air inlet groove of a protective and maintenance device for low-voltage equipment in a box-type substation proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the nameplate structure of a protective and maintenance device for low-voltage equipment in a prefabricated substation, as proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the busbar trunking of a protective and maintenance device for low-voltage equipment in a box-type substation, as proposed in this utility model.

[0029] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Enclosure; 2. Limiting rod; 3. Limiting hole; 4. Spring; 5. Fixing rod; 6. Fixing plate; 7. Rotating column; 8. Cable management plate; 9. Fixing device; 10. Heat pipe; 11. Compressor; 12. Air outlet; 13. Heat sink; 14. Inclined plate; 15. Busbar trunking; 16. Nameplate; 17. Low voltage equipment; 18. Fixing box; 19. Air inlet slot; 20. Enclosure door; 21. Water pipe. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] Example 1

[0035] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of a protective and maintenance device for low-voltage equipment in a box-type substation, comprising a box body 1. The inner wall of the box body 1 is equipped with a dehumidification component for dehumidification. When the distribution box encounters excessively humid weather during daily use, moisture accumulates on the inner wall of the box body 1, damaging the wires and preventing their normal operation. In this case, the dehumidification component is needed to effectively prevent this situation and ensure the normal operation of the wires. A fixing device 9 is fixedly connected to the inner wall of the box body 1, and a rotating column 7 is rotatably connected to the inner wall of the fixing device 9. The rotating column 7 assists in rotation, and a cable management plate 8 is fixedly connected to the outer wall of the rotating column 7.

[0036] When the distribution box is needed, the low-voltage equipment 17 is installed on the inner wall of the box 1. For the wires that need to be connected to the low-voltage equipment 17, they are placed on the inner wall of the busbar trough 15. At this time, the cable tray 8 is rotated with the assistance of the rotating column 7. The rotating column 7 can make the cable tray 8 rotate more smoothly and rotate the cable tray 8 into the groove of the fixing plate 6. The inner wall of the other end of the cable tray 8 is fixedly connected to the fixing rod 5. The outer wall of the fixing rod 5 is fitted with a spring 4. The inner wall of the cable tray 8 is slidably connected to the limiting rod 2. The limiting rod 2 is slidably connected to the fixing plate 6. The inner wall of the fixing plate 6 is provided with a sliding groove. The limiting rod 2 slides on the inner wall of the groove. The inner wall of the fixing plate 6 is provided with a limiting hole 3. One end of the fixing rod 5 is fixedly connected to the inner wall of the cable tray 8.

[0037] The other end of the spring 4 is fixedly connected to the bottom of the limiting rod 2. Under the control of the spring 4, the limiting rod 2 will retract to the inner wall of the cable tray 8. At this time, when the limiting rod 2 rotates to the inner wall of the limiting hole 3, the spring 4 releases elastic potential energy to push the limiting rod 2 into the inner wall of the limiting hole 3, thereby fixing the wires on the inner wall of the busbar trough 15. This achieves the goal of fixing the wires to the inner wall of the busbar trough 15, so that the wires can be neatly and regularly arranged on the inner wall of the box 1, which is convenient for subsequent maintenance and use by the staff. This fixing method makes the wires more secure and less prone to loosening. Multiple nameplates 16 are fixedly connected to the inner wall of the box 1. After the wires are fixed to the inner wall of the busbar trough 15, the specifications and functions of the wires can be written on the surface of the nameplates 16, which makes it easier for the staff to find the wires and improves work efficiency.

[0038] Example 2

[0039] Reference Figures 2 to 4The dehumidification assembly includes a fixed box 18, the outer wall of which is fixedly connected to the inner top wall of the housing 1. A compressor 11 is fixedly connected to the outer wall of the fixed box 18. The fixed box 18 is used to install other components. The compressor 11 provides refrigerant. A heat pipe 10 is fixedly connected to the inner wall of the compressor 11. When outside air enters the inner wall of the fixed box 18 through the air inlet slot 19, the compressor 11 starts and discharges the refrigerant into the inner wall of the heat pipe 10. The heat pipe 10 transfers the temperature to the outer wall of the heat dissipation plate 13. The heat pipe 10 transfers the temperature. Multiple heat dissipation plates 13 are fixedly connected to the outer wall of the heat pipe 10. The outer wall of the heat dissipation plate 13 is fixedly connected to the inner wall of the fixed box 18. The heat dissipation plate 13 can dissipate the temperature, so that the moisture inside the air comes into contact with the low temperature, condenses into water droplets, and then falls onto the surface of the inclined plate 14.

[0040] The outer wall of the fixed box 18 has multiple air inlet slots 19. The inner wall of the fixed box 18 is fixedly connected to an inclined plate 14. Since the inclined plate 14 is installed at an angle, water droplets will slide to the water guide pipe 21 due to the inclined plate 14 and be discharged through the water guide pipe 21. The design of the inclined plate 14 facilitates the discharge of water droplets. The outer wall of the fixed box 18 has an air outlet 12. The dehumidified air will be discharged to the inner wall of the fixed box 18 through the air outlet 12. The inner wall of the fixed box 18 is fixedly connected to the water guide pipe 21. The inner wall of the box 1 is fixedly connected to a low voltage device 17. The inner wall of the box 1 has multiple busbar slots 15 for placing wires. The outer wall of the box 1 is rotatably connected to a door 20. The door 20 is used to open and close the box 1 for convenient operation.

[0041] Work steps

[0042] Working principle: When the distribution box is needed, the low-voltage device 17 is installed on the inner wall of the box 1. The wires that need to be connected to the low-voltage device 17 are placed on the inner wall of the busbar trough 15. With the assistance of the rotating column 7, the cable tie plate 8 is rotated to the inside of the slot of the fixing plate 6. At this time, the limiting rod 2 slides on the inner wall of the slot. Under the control of the spring 4, the limiting rod 2 will retract to the inner wall of the cable tie plate 8. When the limiting rod 2 rotates to the inner wall of the limiting hole 3, the spring 4 releases elastic potential energy and pushes the limiting rod 2 into the inner wall of the limiting hole 3, thereby fixing the wires on the inner wall of the busbar trough 15. This fixes the wires on the inner wall of the busbar trough 15, so that the wires can be neatly and regularly arranged on the inner wall of the box 1, which is convenient for subsequent maintenance and use by the staff. After the wires are fixed on the inner wall of the busbar trough 15, the specifications and functions of the wires can be written on the surface of the nameplate 16 for easy identification by the staff.

[0043] During the daily use of the distribution box, it may encounter weather with excessive humidity in the air. This will cause moisture to accumulate on the inner wall of the box 1, which will damage the wires and prevent them from working properly. At this time, it is necessary to dehumidify the inner wall of the box 1. When the outside air enters the inner wall of the fixed box 18 through the air inlet 19, the compressor 11 starts and discharges the refrigerant into the inner wall of the heat pipe 10. At this time, the heat pipe 10 will heat the outer wall of the heat sink 13. The moisture inside the air will come into contact with the low temperature and condense into water droplets, which will then fall onto the surface of the inclined plate 14. Since the inclined plate 14 is installed at an angle, the water droplets will slide to the water pipe 21 due to the inclined plate 14 and be discharged through the water pipe 21. After that, the dehumidified air will be discharged into the inner wall of the fixed box 18 through the air outlet 12.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 protective and maintenance device for low-voltage equipment in a prefabricated substation, comprising a housing (1), characterized in that: The inner wall of the box (1) is provided with a dehumidification component for dehumidification. A fixture (9) is fixedly connected to the inner wall of the box (1). A rotating column (7) is rotatably connected to the inner wall of the fixture (9). A cable management plate (8) is fixedly connected to the outer wall of the rotating column (7). A fixing rod (5) is fixedly connected to the inner wall of the other end of the cable management plate (8). A spring (4) is sleeved on the outer wall of the fixing rod (5). A limit rod (2) is slidably connected to the inner wall of the cable management plate (8). A fixing plate (6) is slidably connected to the limit rod (2).

2. The protection and maintenance device for low-voltage equipment in a prefabricated substation according to claim 1, characterized in that: The dehumidification assembly includes a fixed box (18), the outer wall of which is fixedly connected to the top inner wall of the box body (1), a compressor (11) is fixedly connected to the outer wall of the fixed box (18), a heat pipe (10) is fixedly connected to the inner wall of the compressor (11), and multiple heat dissipation plates (13) are fixedly connected to the outer wall of the heat pipe (10).

3. The protection and maintenance device for low-voltage equipment in a prefabricated substation according to claim 2, characterized in that: The outer wall of the heat sink (13) is fixedly connected to the inner wall of the fixed box (18), and the outer wall of the fixed box (18) is provided with a plurality of air inlet slots (19).

4. The protection and maintenance device for low-voltage equipment in a prefabricated substation according to claim 2, characterized in that: An inclined plate (14) is fixedly connected to the inner wall of the fixed box (18), and an air vent (12) is provided on the outer wall of the fixed box (18).

5. A protection and maintenance device for low-voltage equipment in a prefabricated substation according to claim 2, characterized in that: A water pipe (21) is fixedly connected to the inner wall of the fixed box (18), and a low voltage device (17) is fixedly connected to the inner wall of the box body (1).

6. The protection and maintenance device for low-voltage equipment in a prefabricated substation according to claim 1, characterized in that: The inner wall of the fixing plate (6) is provided with a sliding groove, and the inner wall of the fixing plate (6) is provided with a limiting hole (3).

7. The protection and maintenance device for low-voltage equipment in a prefabricated substation according to claim 1, characterized in that: One end of the fixing rod (5) is fixedly connected to the inner wall of the cable tray (8), and the other end of the spring (4) is fixedly connected to the bottom of the limiting rod (2).

8. A protection and maintenance device for low-voltage equipment in a prefabricated substation according to claim 1, characterized in that: The inner wall of the enclosure (1) is fixedly connected with multiple nameplates (16), and the inner wall of the enclosure (1) is provided with multiple busbar grooves (15). The outer wall of the enclosure (1) is rotatably connected with a door (20).

Images