A highly protective enclosed plug-in box structure for cast-in-place busbars

Abstract

A highly protective enclosed plug-in box structure for cast-in-place busbars is disclosed. The plug-in box is located above the top surface of the cast-in-place busbar. The plug-in box includes a plug-in box body and a waterproof plug-in box. The waterproof plug-in box is located at one bottom end of the plug-in box body. The bottom surface of the waterproof plug-in box is connected to the top surface of the cast-in-place busbar. The top of the waterproof plug-in box is connected to the plug-in box body through a sealing cover. A waterproof connector is provided through the other end of the plug-in box body. By separating and elevating the plug-in part of the plug-in box, the plug-in box body is suspended to reduce the contact area with the busbar, which facilitates waterproofing. At the same time, the plug-in plate is provided with an independent waterproof plug-in box to ensure that the plug-in plate is sealed and waterproof while connecting to the busbar, thereby improving the overall waterproof effect and level, and meeting the IP67 waterproof effect.

Description

Technical Field

[0001] This article belongs to the technical field of cast-in-place busbar junction boxes, specifically relating to a highly protective enclosed junction box structure for cast-in-place busbars. Background Technology

[0002] A busbar is a product made of highly conductive copper (copper busbar) and aluminum, used to transmit electrical energy and has the ability to collect and distribute power. It is the main conductor used in power plants or substations to transmit electrical energy. Through it, the electrical energy output from generators, transformers, or rectifiers is transmitted to various users or other substations.

[0003] Modern high-rise buildings and large workshops require enormous amounts of electrical energy. To handle these massive loads of hundreds or thousands of amperes of current, safe and reliable transmission equipment is essential, and busbar systems are an excellent choice. Busbar systems are highly efficient power distribution devices, particularly suited to the increasingly tall buildings and large-scale factories requiring economical and rational wiring. Due to the growing electrical demands of buildings and factories, and the increasing trend of these demands year by year, traditional wiring methods, such as conduit wiring, present numerous construction difficulties. Furthermore, simplifying changes to the power distribution system is nearly impossible. However, using busbars makes achieving these goals much easier and also enhances the building's aesthetics. Economically, while busbars themselves are more expensive than cables, compared to the various wiring accessories and the entire power system, using busbars significantly reduces construction costs, especially when dealing with large current capacities.

[0004] In recent years, cast-in-place waterproof busbar trunking has gradually replaced traditional ordinary busbar trunking in order to achieve waterproofing. However, the plug-in connection of the busbars inside the cast-in-place waterproof busbar trunking will damage the outer shell of the cast-in-place busbar, thereby reducing the waterproofing performance of the cast-in-place busbar. Summary of the Invention

[0005] To address the aforementioned issues, this paper proposes a highly protective enclosed plug-in box structure for cast-in-place busbars. The plug-in box is positioned above the top surface of the cast-in-place busbar and comprises a plug-in box body and a waterproof plug-in junction box. The waterproof plug-in junction box is located at one end of the bottom surface of the plug-in box body, and its bottom surface is connected to the top surface of the cast-in-place busbar. The top of the waterproof plug-in junction box is connected to the plug-in box body via a sealing cover. A waterproof connector is provided through the other end of the plug-in box body, with one end located on the outside of the plug-in box body and the other end having a waterproof compartment. A sealing element is provided between the top surface of the waterproof plug-in junction box and the bottom surface of the plug-in box body. By separating and elevating the plug-in portion originally on the plug-in box, the plug-in box body is suspended, reducing the contact area with the busbar and facilitating waterproofing. Furthermore, the independent waterproof plug-in junction box at the plug-in position ensures a sealed waterproof connection between the plug-in and the busbar, thereby improving the overall waterproofing effect and rating, meeting the IP67 waterproof standard.

[0006] The plug-in box is rectangular in shape, with a sealing edge on the top surface. A main switch is located in the center of the box, with a waterproof compartment on one side and a sealing cover on the other. The waterproof compartment is connected to the inner end face of the plug-in box, and the sealing cover is positioned above the bottom surface. The waterproof compartment is rectangular, with its external length and height equal to the internal width and height of the plug-in box. A waterproof connector is located inside the waterproof compartment. By providing an independent waterproof compartment at the waterproof connector inside the plug-in box, water overflow is prevented. The base plate of the main switch allows for assembly and fixation without damaging the outer surface of the box, and its raised design also provides initial waterproofing.

[0007] The lid is a rectangular concave lid, and the inner side of the lid is connected to the lid sealing edge. The inner side of the lid sealing edge is provided with several bolt fixing seats. The lid is fixedly connected to the plug-in box body through the bolt fixing seats. The lid with the sealing edge can better ensure the waterproofness of the lid, and the lid is fixed by multiple bolts to ensure a firm seal.

[0008] The sealing cover is rectangular in shape. Several inserts are provided through the top surface of the sealing cover, and several bolt pressing arc grooves are provided around the perimeter of the sealing cover. The inserts are provided through the middle of the sealing cover, with cables on the top of the inserts and the bottom of the inserts located inside the waterproof connector. The sealing cover, which can be detached and removable, separates and seals the box and the connector box, facilitating installation and wiring while ensuring waterproofing inside the box and allowing for convenient plug-in operations.

[0009] The waterproof connector box is a rectangular shell with through openings on both its top and bottom surfaces. The outer edge of the bottom surface connects to the surface of the cast busbar. A sealing element, consisting of double-layered sealing rings, is located on the outer edge of the top surface. Several clamping bolts are positioned between the double-layered sealing rings, which connect the sealing cover to the waterproof connector box via downward-pressing grooves. The inner sealing ring is located between the sealing cover and the waterproof connector box, while the outer sealing ring is located between the connector box body and the waterproof connector box. This waterproof connector box achieves a seal below the connector box body while also elevating the connector box body to reduce damage to its outer surface and facilitating easy connection and sealing.

[0010] Beneficial effects:

[0011] By separating and elevating the original plug-in parts on the plug box, the plug box is made to be suspended, reducing the contact area with the busbar and facilitating waterproofing. At the same time, an independent waterproof plug box is set at the position of the plug to ensure that the plug is sealed and waterproof when connected to the busbar, thereby improving the overall waterproof effect and level, and meeting the IP67 waterproof effect.

[0012] By setting an independent waterproof compartment at the waterproof joint inside the plug-in box, it is ensured that no water will overflow from the waterproof joint. The base plate of the main switch can be assembled and fixed without damaging the outer surface of the box, and the raised design can also play a preliminary role in preventing water from entering.

[0013] The sealed lid design better ensures waterproofing, and multiple bolts secure the lid for a strong seal.

[0014] The removable sealing cover separates and seals the enclosure from the junction box, facilitating installation and wiring while ensuring the enclosure is waterproof and allowing for easy connection operations.

[0015] The waterproof junction box not only seals the bottom of the junction box, but also elevates the junction box to reduce damage to its outer surface, and facilitates easy connection to ensure a seal. Attached Figure Description

[0016] Figure 1 This is an assembly diagram of a highly protective enclosed plug-in box structure for cast-in-place busbars;

[0017] Figure 2 This is an assembly sectional view of a highly protective cast-in-place busbar enclosed plug-in box structure;

[0018] Figure 3 This is a schematic diagram showing the opening of a highly protective enclosed plug-in box structure for cast-in-place busbars;

[0019] Figure 4 This is an internal schematic diagram of a highly protective enclosed plug-in box structure for cast-in-place busbars;

[0020] In the diagram: 1. Cast-in-place busbar, 2. Plug-in box, 3. Box cover, 4. Waterproof plug-in box, 5. Waterproof connector, 6. Waterproof compartment, 7. Main switch, 8. Main switch base plate, 9. Cable, 10. Plug, 11. Sealing cover. Detailed Implementation

[0021] To enhance understanding of the present invention, the invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only for explaining the invention and do not constitute a limitation on the scope of protection of the invention.

[0022] 1. Cast-in-place busbar; 2. Plug-in box; 3. Box cover; 4. Waterproof plug-in box; 5. Waterproof connector; 6. Waterproof compartment; 7. Main switch; 8. Main switch base plate; 9. Cable; 10. Plug; 11. Sealing cover plate.

[0023] like Figure 1 , 2 As shown in Figures 3 and 4;

[0024] A highly protective enclosed plug-in box structure for a cast-in-place busbar 1 is provided. The plug-in box is located above the top surface of the cast-in-place busbar 1. The plug-in box includes a plug-in box body 2 and a waterproof plug-in junction box 4. The waterproof plug-in junction box 4 is located below one end of the bottom surface of the plug-in box body 2. The bottom surface of the waterproof plug-in junction box 4 is connected to the top surface of the cast-in-place busbar 1. The top surface of the waterproof plug-in junction box 4 is connected to the plug-in box body 2 through a sealing cover plate 11. A waterproof connector 5 is provided through the other end of the plug-in box body 2. One end of the waterproof connector 5 is located on the outside of the plug-in box body 2, and a waterproof compartment 6 is provided on the outside of the other end of the waterproof connector 5. A sealing element is provided between the top surface of the waterproof plug-in junction box 4 and the bottom surface of the plug-in box body 2. The box is rectangular in shape. The top surface of the plug-in box 2 has a sealing edge for the lid. A main switch 7 is located in the center of the interior of the plug-in box 2. A waterproof compartment 6 is located on one side of the main switch 7, and a sealing cover 11 is located on the other side of the main switch 7. The waterproof compartment 6 is connected to the inner end face of the plug-in box 2. The sealing cover 11 is located above the bottom surface of the plug-in box 2. The lid 3 is a rectangular concave cover. The inner side of the lid 3 is connected to the sealing edge of the lid. Several bolt fixing seats are located on the inner side of the sealing edge of the lid. The lid 3 is fixedly connected to the plug-in box 2 through the bolt fixing seats. The waterproof compartment 6 is a rectangular shell, and the outer length of the waterproof compartment 6 is equal to the inner width of the plug-in box 2. The external height of the waterproof compartment 6 is equal to the internal height of the plug-in box 2. The waterproof compartment 6 has a waterproof connector 5 at one end. The sealing cover 11 is rectangular, with several inserts 10 penetrating its top surface. Several bolt-pressing grooves are provided around the perimeter of the sealing cover 11. The inserts 10 are penetrating the center of the sealing cover 11, with cables 9 at their top and their bottoms inside the waterproof plug-in box. The bottom of the main switch 7 is connected to the inside of the plug-in box 2 via the main switch base plate 8. The main switch 7 is connected to the inserts 10 via a connector. The bottom of the main switch base plate 8 has a transverse connection to the waterproof connector 5. The connected cable 9 and the waterproof junction box 4 are rectangular shells. The top and bottom surfaces of the waterproof junction box 4 are provided with through-through openings. The outer edge of the bottom surface of the waterproof junction box 4 is connected to the surface of the cast busbar 1. The outer edge of the top surface of the waterproof junction box 4 is provided with a sealing element, which is a double-layer sealing ring. The sealing rings are arranged parallel to each other on the outer edge of the top surface of the waterproof junction box 4. Several clamping bolts are provided between the double-layer sealing rings. The clamping bolts connect the sealing cover plate 11 to the waterproof sealing box by pressing the bolts down the arc groove. The inner sealing ring is located between the sealing cover plate 11 and the waterproof sealing box, and the outer sealing ring is located between the junction box 2 and the waterproof sealing box.

[0025] Implementation example:

[0026] The waterproof compartment 6 at the sealing joint ensures that when the sealing joint is damaged and water overflows, the liquid will preferentially enter the waterproof compartment 6, thus ensuring the waterproof effect at the waterproof joint 5.

[0027] The lid 3 is sealed to prevent water from overflowing through the gaps in the lid 3, and the sealing performance of the lid 3 is further enhanced by multiple screw fixing seats.

[0028] The cooperation between the sealing cover 11 and the plug-in box 2 and the waterproof plug-in box 4 ensures that no liquid will flow into the plug-in box 2, and no liquid will flow into the waterproof plug-in box 4.

[0029] When it is necessary to install the plug-in box, first install the waterproof junction box 4 on the outside of the cast busbar 1, then connect the cables 9 inside the plug-in box 2, and connect the cables 9 to the inserts 10 of the sealing cover plate 11 in sequence. Then put the sealing cover plate 11 into the plug-in box 2, and seal the sealing cover plate 11, the plug-in box 2 and the waterproof plug-in box 4 in sequence from top to bottom by tightening the bolts.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highly protective enclosed plug-in box structure for cast busbars, wherein the plug-in box is located above the top surface of the cast busbar, characterized in that, The aforementioned plug-in box includes a plug-in box body and a waterproof plug-in box. The waterproof plug-in box is located at one bottom end of the plug-in box body. The bottom surface of the waterproof plug-in box is connected to the top surface of the cast busbar. The top of the waterproof plug-in box is connected to the plug-in box body through a sealing cover plate. A waterproof connector is provided through the other end of the plug-in box body. One end of the waterproof connector is located on the outside of the plug-in box body, and a waterproof compartment is provided on the outside of the other end of the waterproof connector. A sealing element is provided between the top surface of the waterproof plug-in box and the bottom surface of the plug-in box body.

2. The highly protective enclosed plug-in box structure for cast-in-place busbars according to claim 1, characterized in that, The plug-in box is rectangular in shape. The top surface of the plug-in box is provided with a sealing edge for the box cover. The main switch is located in the middle of the interior of the plug-in box. A waterproof compartment is provided on one side of the main switch, and a sealing cover is provided on the other side of the main switch. The waterproof compartment is connected to the inner end face of the plug-in box, and the sealing cover is located above the bottom surface of the plug-in box.

3. The highly protective enclosed plug-in box structure for cast-in-place busbars according to claim 2, characterized in that, The lid is a rectangular concave lid, and the inner side of the lid is connected to the lid sealing edge. The inner side of the lid sealing edge is provided with several bolt fixing seats, and the lid is fixedly connected to the plug-in box body through the bolt fixing seats.

4. The highly protective enclosed plug-in box structure for cast-in-place busbars according to claim 2, characterized in that, The waterproof compartment is a rectangular shell. The outer length of the waterproof compartment is equal to the inner width of the plug-in box, and the outer height of the waterproof compartment is equal to the inner height of the plug-in box. The waterproof compartment has a waterproof connector at one end.

5. The highly protective enclosed plug-in box structure for cast-in-place busbars according to claim 2, characterized in that, The sealing cover is rectangular in shape. Several inserts are provided through the top surface of the sealing cover, and several bolt pressing arc grooves are provided around the perimeter of the sealing cover. The inserts are provided through the middle of the sealing cover, and cables are provided at the top of the inserts. The bottom of the inserts is located inside the waterproof connector.

6. The highly protective enclosed plug-in box structure for cast-in-place busbars according to claim 5, characterized in that, The bottom of the main switch is connected to the inside of the plug-in box via the main switch base plate. The main switch is connected to the plug plate via a connector. A cable connected to a waterproof connector is provided horizontally through the bottom of the main switch base plate.

7. The highly protective enclosed plug-in box structure for cast-in-place busbars according to claim 5, characterized in that, The waterproof connector box is a rectangular shell with through openings on both the top and bottom surfaces. The outer edge of the bottom surface of the waterproof connector box is connected to the surface of the cast busbar, and a sealing element is provided on the outer edge of the top surface of the waterproof connector box.

8. The highly protective enclosed plug-in box structure for cast-in-place busbars according to claim 7, characterized in that, The sealing element is a double-layered sealing ring, which is arranged parallel to each other on the outer edge of the top surface of the waterproof connector box. Several clamping bolts are provided between the double-layered sealing rings. The clamping bolts connect the sealing cover plate to the waterproof sealing box by pressing down the arc groove of the bolt.

9. The highly protective enclosed plug-in box structure for cast-in-place busbars according to claim 8, characterized in that, The inner sealing ring is located between the sealing cover and the waterproof sealing box, and the outer sealing ring is located between the plug-in box and the waterproof sealing box.

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